{"title":"Swing Check Valves","description":"\u003cp\u003eSwing check valves use a hinged disc that swings open under forward flow and drops shut the instant flow reverses. They give the lowest pressure drop of any check design on water and larger-diameter lines, which is why they are the default backflow protection for pump discharge, municipal water, HVAC, and irrigation mains. Apex Flow Solutions stocks swing check valves from 1\/2 in. threaded brass up through large-diameter ductile iron flanged bodies, sold by the single unit.\u003c\/p\u003e\u003ch3\u003eHow a swing check valve works\u003c\/h3\u003e\u003cp\u003eForward pressure lifts the disc off its seat; when flow stops, the disc falls closed under its own weight and any reverse pressure. There is no spring, so the valve adds very little restriction, but it also relies on gravity, which is why orientation matters. On lines where flow stops abruptly and slam is a concern, a spring-loaded design closes faster. Compare the two on our \u003ca href=\"\/pages\/check-valves-guide\"\u003echeck valve selection guide\u003c\/a\u003e, or browse \u003ca href=\"\/collections\/spring-check-valves\"\u003espring check valves\u003c\/a\u003e if you need instant closure.\u003c\/p\u003e\u003ch3\u003eMaterials and sizes we stock\u003c\/h3\u003e\u003cp\u003eThreaded brass swing checks from 1\/2 in. to 4 in. for water, air, and oil service. 316 stainless swing checks for chlorine, acids, and corrosive process lines. Ductile iron flanged swing checks built to AWWA C508 for municipal and waterworks duty, including UL\/FM listed models plus lever-and-weight and spring-assist options for surge control on the 9620 series. Solder-end brass models are available for copper systems.\u003c\/p\u003e\u003ch3\u003eInstallation and orientation\u003c\/h3\u003e\u003cp\u003eInstall a swing check horizontally, or vertically only when flow runs upward, so gravity helps the disc seat. Mount it with the flow arrow pointing downstream and the bonnet on top for horizontal runs. Installed backwards, or in downward-vertical flow, the disc will not seat correctly. See the \u003ca href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eorientation guide\u003c\/a\u003e for diagrams.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eSwing check or spring check?\u003c\/h4\u003e\u003cp\u003eChoose a swing check for low restriction on water and larger lines where flow changes gradually. Choose a \u003ca href=\"\/collections\/spring-check-valves\"\u003espring check\u003c\/a\u003e where flow stops suddenly and you need to prevent water hammer, or where the valve must sit in a vertical downflow line.\u003c\/p\u003e\u003ch4\u003eCan a swing check valve mount vertically?\u003c\/h4\u003e\u003cp\u003eOnly on vertical-upflow lines. On downward flow the disc cannot fall onto its seat, so use a spring or inline check instead.\u003c\/p\u003e","products":[{"product_id":"3-in-ductile-iron-swing-check-valve-flanged-awwa-c508-962003","title":"3 in. Ductile Iron Swing Check Valve, Flanged — AWWA C508 (962003)","description":"\u003cp\u003eThe \u003cstrong\u003e3 in. Ductile Iron Swing Check Valve, Flanged — AWWA C508 (#962003)\u003c\/strong\u003e is a ductile iron swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. It bolts between standard pipe flanges. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e962003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eDuctile Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eAWWA C508\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003eDuctile Iron construction\u003c\/li\u003e\n\u003cli\u003eFlanged connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003cli\u003eMeets AWWA C508\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740367401175,"sku":"962003","price":565.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_962003.jpg?v=1780646572"},{"product_id":"4-in-ductile-iron-swing-check-valve-flanged-awwa-c508-962004","title":"4 in. Ductile Iron Swing Check Valve, Flanged — AWWA C508 (962004)","description":"\u003cp\u003eThe \u003cstrong\u003e4 in. Ductile Iron Swing Check Valve, Flanged — AWWA C508 (#962004)\u003c\/strong\u003e is a ductile iron swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. It bolts between standard pipe flanges. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e962004\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eDuctile Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eAWWA C508\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003eDuctile Iron construction\u003c\/li\u003e\n\u003cli\u003eFlanged connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003cli\u003eMeets AWWA C508\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740367433943,"sku":"962004","price":856.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_962003_1a56b529-fc39-4b20-9206-0f10dc4fbee8.jpg?v=1781564818"},{"product_id":"6-in-ductile-iron-swing-check-valve-flanged-awwa-c508-962006","title":"6 in. Ductile Iron Swing Check Valve, Flanged — AWWA C508 (962006)","description":"\u003cp\u003eThe \u003cstrong\u003e6 in. Ductile Iron Swing Check Valve, Flanged — AWWA C508 (#962006)\u003c\/strong\u003e is a ductile iron swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. It bolts between standard pipe flanges. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e962006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e6 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eDuctile Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eAWWA C508\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003eDuctile Iron construction\u003c\/li\u003e\n\u003cli\u003eFlanged connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003cli\u003eMeets AWWA C508\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740367466711,"sku":"962006","price":1514.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_962003_23395f6f-06ca-4437-a426-954176e5733e.jpg?v=1781565140"},{"product_id":"8-in-ductile-iron-swing-check-valve-flanged-awwa-c508-962008","title":"8 in. Ductile Iron Swing Check Valve, Flanged — AWWA C508 (962008)","description":"\u003cp\u003eThe \u003cstrong\u003e8 in. Ductile Iron Swing Check Valve, Flanged — AWWA C508 (#962008)\u003c\/strong\u003e is a ductile iron swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. It bolts between standard pipe flanges. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e962008\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e8 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eDuctile Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eAWWA C508\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003eDuctile Iron construction\u003c\/li\u003e\n\u003cli\u003eFlanged connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003cli\u003eMeets AWWA C508\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740367499479,"sku":"962008","price":2330.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_962003_1ff69117-b650-4946-9e21-d9ffcc1350f6.jpg?v=1781565141"},{"product_id":"10-in-ductile-iron-swing-check-valve-flanged-awwa-c508-962010","title":"10 in. Ductile Iron Swing Check Valve, Flanged — AWWA C508 (962010)","description":"\u003cp\u003eThe \u003cstrong\u003e10 in. Ductile Iron Swing Check Valve, Flanged — AWWA C508 (#962010)\u003c\/strong\u003e is a ductile iron swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. It bolts between standard pipe flanges. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e962010\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e10 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eDuctile Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eAWWA C508\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003eDuctile Iron construction\u003c\/li\u003e\n\u003cli\u003eFlanged connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003cli\u003eMeets AWWA C508\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740367532247,"sku":"962010","price":1551.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_962003_cea80916-712b-40a3-a433-79e639f7b1e6.jpg?v=1781565141"},{"product_id":"3-in-ductile-iron-swing-check-valve-lever-weight-awwa-c508-96203lw","title":"3 in. Ductile Iron Swing Check Valve, Lever \u0026 Weight — AWWA C508 (96203LW)","description":"\u003cp\u003eThe \u003cstrong\u003e3 in. Ductile Iron Swing Check Valve, Lever \u0026amp; Weight — AWWA C508 (#96203LW)\u003c\/strong\u003e is a ductile iron swing check valve with an external lever and weight for controlled, non-slam closure. It allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e96203LW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve (Lever \u0026amp; Weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eDuctile Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eAWWA C508\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExternal lever and weight for controlled, non-slam closure\u003c\/li\u003e\n\u003cli\u003eAutomatic backflow prevention\u003c\/li\u003e\n\u003cli\u003eDuctile Iron construction\u003c\/li\u003e\n\u003cli\u003eFlanged connection\u003c\/li\u003e\n\u003cli\u003eMeets AWWA C508\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740369400023,"sku":"96203LW","price":650.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_962010LW.jpg?v=1781565141"},{"product_id":"4-in-ductile-iron-swing-check-valve-lever-weight-awwa-c508-96204lw","title":"4 in. Ductile Iron Swing Check Valve, Lever \u0026 Weight — AWWA C508 (96204LW)","description":"\u003cp\u003eThe \u003cstrong\u003e4 in. Ductile Iron Swing Check Valve, Lever \u0026amp; Weight — AWWA C508 (#96204LW)\u003c\/strong\u003e is a ductile iron swing check valve with an external lever and weight for controlled, non-slam closure. It allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e96204LW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve (Lever \u0026amp; Weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eDuctile Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eAWWA C508\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExternal lever and weight for controlled, non-slam closure\u003c\/li\u003e\n\u003cli\u003eAutomatic backflow prevention\u003c\/li\u003e\n\u003cli\u003eDuctile Iron construction\u003c\/li\u003e\n\u003cli\u003eFlanged connection\u003c\/li\u003e\n\u003cli\u003eMeets AWWA C508\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740369465559,"sku":"96204LW","price":1015.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_962010LW_e3df633f-95bf-4fc0-8d08-e8d2609d6baa.jpg?v=1781565141"},{"product_id":"6-in-ductile-iron-swing-check-valve-lever-weight-awwa-c508-96206lw","title":"6 in. Ductile Iron Swing Check Valve, Lever \u0026 Weight — AWWA C508 (96206LW)","description":"\u003cp\u003eThe \u003cstrong\u003e6 in. Ductile Iron Swing Check Valve, Lever \u0026amp; Weight — AWWA C508 (#96206LW)\u003c\/strong\u003e is a ductile iron swing check valve with an external lever and weight for controlled, non-slam closure. It allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e96206LW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e6 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve (Lever \u0026amp; Weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eDuctile Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eAWWA C508\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExternal lever and weight for controlled, non-slam closure\u003c\/li\u003e\n\u003cli\u003eAutomatic backflow prevention\u003c\/li\u003e\n\u003cli\u003eDuctile Iron construction\u003c\/li\u003e\n\u003cli\u003eFlanged connection\u003c\/li\u003e\n\u003cli\u003eMeets AWWA C508\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740390994135,"sku":"96206LW","price":1548.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_962010LW_553ea8a6-ccd9-4f79-98d6-926ae88380bb.jpg?v=1781565142"},{"product_id":"8-in-ductile-iron-swing-check-valve-lever-weight-awwa-c508-96208lw","title":"8 in. Ductile Iron Swing Check Valve, Lever \u0026 Weight — AWWA C508 (96208LW)","description":"\u003cp\u003eThe \u003cstrong\u003e8 in. Ductile Iron Swing Check Valve, Lever \u0026amp; Weight — AWWA C508 (#96208LW)\u003c\/strong\u003e is a ductile iron swing check valve with an external lever and weight for controlled, non-slam closure. It allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e96208LW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e8 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve (Lever \u0026amp; Weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eDuctile Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eAWWA C508\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExternal lever and weight for controlled, non-slam closure\u003c\/li\u003e\n\u003cli\u003eAutomatic backflow prevention\u003c\/li\u003e\n\u003cli\u003eDuctile Iron construction\u003c\/li\u003e\n\u003cli\u003eFlanged connection\u003c\/li\u003e\n\u003cli\u003eMeets AWWA C508\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740391157975,"sku":"96208LW","price":2514.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_962010LW_8b489bcf-c9f7-4343-ab4a-fc5f0696d0a9.jpg?v=1781565142"},{"product_id":"3-in-ductile-iron-swing-check-valve-flanged-ul-fm-96203ul","title":"3 in. Ductile Iron Swing Check Valve, Flanged — UL\/FM (96203UL)","description":"\u003cp\u003eThe \u003cstrong\u003e3 in. Ductile Iron Swing Check Valve, Flanged — UL\/FM (#96203UL)\u003c\/strong\u003e is a UL Listed \/ FM Approved ductile iron swing check valve for fire-protection service. It allows flow in one direction and automatically prevents reverse flow (backflow). It bolts between standard pipe flanges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e96203UL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eDuctile Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eUL\/FM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUL Listed \/ FM Approved for fire-protection service\u003c\/li\u003e\n\u003cli\u003eAutomatic backflow prevention\u003c\/li\u003e\n\u003cli\u003eDuctile Iron construction\u003c\/li\u003e\n\u003cli\u003eFlanged connection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eFire protection systems, water distribution, pump discharge lines, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740397023447,"sku":"96203UL","price":516.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_962010UL.jpg?v=1781565142"},{"product_id":"4-in-ductile-iron-swing-check-valve-flanged-ul-fm-96204ul","title":"4 in. Ductile Iron Swing Check Valve, Flanged — UL\/FM (96204UL)","description":"\u003cp\u003eThe \u003cstrong\u003e4 in. Ductile Iron Swing Check Valve, Flanged — UL\/FM (#96204UL)\u003c\/strong\u003e is a UL Listed \/ FM Approved ductile iron swing check valve for fire-protection service. It allows flow in one direction and automatically prevents reverse flow (backflow). It bolts between standard pipe flanges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e96204UL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eDuctile Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eUL\/FM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUL Listed \/ FM Approved for fire-protection service\u003c\/li\u003e\n\u003cli\u003eAutomatic backflow prevention\u003c\/li\u003e\n\u003cli\u003eDuctile Iron construction\u003c\/li\u003e\n\u003cli\u003eFlanged connection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eFire protection systems, water distribution, pump discharge lines, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740397056215,"sku":"96204UL","price":842.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_962010UL_b37dec98-cadb-4c51-99c2-636e8463ef94.jpg?v=1781565142"},{"product_id":"6-in-ductile-iron-swing-check-valve-flanged-ul-fm-96206ul","title":"6 in. Ductile Iron Swing Check Valve, Flanged — UL\/FM (96206UL)","description":"\u003cp\u003eThe \u003cstrong\u003e6 in. Ductile Iron Swing Check Valve, Flanged — UL\/FM (#96206UL)\u003c\/strong\u003e is a UL Listed \/ FM Approved ductile iron swing check valve for fire-protection service. It allows flow in one direction and automatically prevents reverse flow (backflow). It bolts between standard pipe flanges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e96206UL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e6 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eDuctile Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eUL\/FM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUL Listed \/ FM Approved for fire-protection service\u003c\/li\u003e\n\u003cli\u003eAutomatic backflow prevention\u003c\/li\u003e\n\u003cli\u003eDuctile Iron construction\u003c\/li\u003e\n\u003cli\u003eFlanged connection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eFire protection systems, water distribution, pump discharge lines, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740397121751,"sku":"96206UL","price":1284.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_962010UL_8f0293de-bb1d-4b83-89f8-904f15838180.jpg?v=1781565143"},{"product_id":"8-in-ductile-iron-swing-check-valve-flanged-ul-fm-96208ul","title":"8 in. Ductile Iron Swing Check Valve, Flanged — UL\/FM (96208UL)","description":"\u003cp\u003eThe \u003cstrong\u003e8 in. Ductile Iron Swing Check Valve, Flanged — UL\/FM (#96208UL)\u003c\/strong\u003e is a UL Listed \/ FM Approved ductile iron swing check valve for fire-protection service. It allows flow in one direction and automatically prevents reverse flow (backflow). It bolts between standard pipe flanges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e96208UL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e8 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eDuctile Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eUL\/FM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUL Listed \/ FM Approved for fire-protection service\u003c\/li\u003e\n\u003cli\u003eAutomatic backflow prevention\u003c\/li\u003e\n\u003cli\u003eDuctile Iron construction\u003c\/li\u003e\n\u003cli\u003eFlanged connection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eFire protection systems, water distribution, pump discharge lines, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740397154519,"sku":"96208UL","price":2256.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_962010UL_9524eb85-c3b6-40e8-a1ee-a8e011db5c37.jpg?v=1781565143"},{"product_id":"1-2-in-brass-swing-check-valve-threaded-npt-940352","title":"1\/2 in. Brass Swing Check Valve, Threaded (NPT) (940352)","description":"\u003cp\u003eThe \u003cstrong\u003e1\/2 in. Brass Swing Check Valve, Threaded (#940352)\u003c\/strong\u003e is a brass swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940352\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eThreaded (NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003eBrass construction\u003c\/li\u003e\n\u003cli\u003eThreaded (NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740399677655,"sku":"940352","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940352.jpg?v=1780648288"},{"product_id":"3-4-in-brass-swing-check-valve-threaded-npt-940353","title":"3\/4 in. Brass Swing Check Valve, Threaded (NPT) (940353)","description":"\u003cp\u003eThe \u003cstrong\u003e3\/4 in. Brass Swing Check Valve, Threaded (#940353)\u003c\/strong\u003e is a brass swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940353\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eThreaded (NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003eBrass construction\u003c\/li\u003e\n\u003cli\u003eThreaded (NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740400890071,"sku":"940353","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940353.jpg?v=1780648290"},{"product_id":"1-in-brass-swing-check-valve-threaded-npt-940354","title":"1 in. Brass Swing Check Valve, Threaded (NPT) (940354)","description":"\u003cp\u003eThe \u003cstrong\u003e1 in. Brass Swing Check Valve, Threaded (#940354)\u003c\/strong\u003e is a brass swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940354\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eThreaded (NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003eBrass construction\u003c\/li\u003e\n\u003cli\u003eThreaded (NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740400922839,"sku":"940354","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940354.jpg?v=1780648292"},{"product_id":"1-1-4-in-cast-swing-check-valve-940355","title":"1-1\/4 in. Cast Swing Check Valve (940355)","description":"\u003cp\u003eThe \u003cstrong\u003e1-1\/4 in. Cast Swing Check Valve (#940355)\u003c\/strong\u003e is a cast swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940355\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eCast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003eCast construction\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740400955607,"sku":"940355","price":48.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940355.jpg?v=1780648294"},{"product_id":"1-1-2-in-brass-swing-check-valve-threaded-npt-940356","title":"1-1\/2 in. Brass Swing Check Valve, Threaded (NPT) (940356)","description":"\u003cp\u003eThe \u003cstrong\u003e1-1\/2 in. Brass Swing Check Valve, Threaded (#940356)\u003c\/strong\u003e is a brass swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940356\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eThreaded (NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003eBrass construction\u003c\/li\u003e\n\u003cli\u003eThreaded (NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740401348823,"sku":"940356","price":71.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940356.jpg?v=1780648301"},{"product_id":"2-in-brass-swing-check-valve-threaded-npt-940357","title":"2 in. Brass Swing Check Valve, Threaded (NPT) (940357)","description":"\u003cp\u003eThe \u003cstrong\u003e2 in. Brass Swing Check Valve, Threaded (#940357)\u003c\/strong\u003e is a brass swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940357\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eThreaded (NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003eBrass construction\u003c\/li\u003e\n\u003cli\u003eThreaded (NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740401381591,"sku":"940357","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940357.jpg?v=1780648303"},{"product_id":"2-1-2-in-brass-swing-check-valve-940358","title":"2-1\/2 in. Brass Swing Check Valve (940358)","description":"\u003cp\u003eThe \u003cstrong\u003e2-1\/2 in. Brass Swing Check Valve (#940358)\u003c\/strong\u003e is a brass swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940358\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e2-1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003eBrass construction\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740401414359,"sku":"940358","price":184.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940358.jpg?v=1780648305"},{"product_id":"3-in-brass-swing-check-valve-200-lb-940359","title":"3 in. Brass Swing Check Valve, 200 lb (940359)","description":"\u003cp\u003eThe \u003cstrong\u003e3 in. Brass Swing Check Valve, 200 lb (#940359)\u003c\/strong\u003e is a 200 lb class brass swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940359\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Class\u003c\/td\u003e\n\u003ctd\u003e200 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003eBrass construction\u003c\/li\u003e\n\u003cli\u003e200 lb pressure class\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740401447127,"sku":"940359","price":268.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940359.jpg?v=1780648313"},{"product_id":"4-in-brass-swing-check-valve-200-lb-940360","title":"4 in. Brass Swing Check Valve, 200 lb (940360)","description":"\u003cp\u003eThe \u003cstrong\u003e4 in. Brass Swing Check Valve, 200 lb (#940360)\u003c\/strong\u003e is a 200 lb class brass swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow) to protect pumps and equipment. Built for reliable, low-maintenance service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940360\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Class\u003c\/td\u003e\n\u003ctd\u003e200 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003eBrass construction\u003c\/li\u003e\n\u003cli\u003e200 lb pressure class\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater distribution and treatment, HVAC, pump discharge lines, fire protection, irrigation, and general industrial flow systems requiring dependable backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740405182679,"sku":"940360","price":410.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940360.jpg?v=1780648489"},{"product_id":"1-2-in-316-stainless-steel-swing-check-valve-threaded-npt-949353","title":"1\/2 in. 316 Stainless Steel Swing Check Valve, Threaded (NPT) (949353)","description":"\u003cp\u003eThe \u003cstrong\u003e1\/2 in. 316 Stainless Steel Swing Check Valve (#949353)\u003c\/strong\u003e is a 316 stainless steel swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow). 316 stainless construction resists corrosion in chemical, marine, and high-purity service. Built for reliable, low-maintenance operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949353\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eThreaded (NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003e316 stainless steel — corrosion-resistant for chemical, marine, and high-purity service\u003c\/li\u003e\n\u003cli\u003eThreaded (NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eChemical processing, marine, water treatment, high-purity and food-grade lines, pump discharge, and general industrial flow systems requiring corrosion-resistant backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740414357719,"sku":"949353","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949353.jpg?v=1780648795"},{"product_id":"1-in-316-stainless-steel-swing-check-valve-threaded-npt-949355","title":"1 in. 316 Stainless Steel Swing Check Valve, Threaded (NPT) (949355)","description":"\u003cp\u003eThe \u003cstrong\u003e1 in. 316 Stainless Steel Swing Check Valve (#949355)\u003c\/strong\u003e is a 316 stainless steel swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow). 316 stainless construction resists corrosion in chemical, marine, and high-purity service. Built for reliable, low-maintenance operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949355\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eThreaded (NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003e316 stainless steel — corrosion-resistant for chemical, marine, and high-purity service\u003c\/li\u003e\n\u003cli\u003eThreaded (NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eChemical processing, marine, water treatment, high-purity and food-grade lines, pump discharge, and general industrial flow systems requiring corrosion-resistant backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740414390487,"sku":"949355","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949355.jpg?v=1780648798"},{"product_id":"1-1-4-in-316-stainless-steel-swing-check-valve-threaded-npt-949356","title":"1-1\/4 in. 316 Stainless Steel Swing Check Valve, Threaded (NPT) (949356)","description":"\u003cp\u003eThe \u003cstrong\u003e1-1\/4 in. 316 Stainless Steel Swing Check Valve (#949356)\u003c\/strong\u003e is a 316 stainless steel swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow). 316 stainless construction resists corrosion in chemical, marine, and high-purity service. Built for reliable, low-maintenance operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949356\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eThreaded (NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003e316 stainless steel — corrosion-resistant for chemical, marine, and high-purity service\u003c\/li\u003e\n\u003cli\u003eThreaded (NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eChemical processing, marine, water treatment, high-purity and food-grade lines, pump discharge, and general industrial flow systems requiring corrosion-resistant backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740414423255,"sku":"949356","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949356.jpg?v=1780648800"},{"product_id":"2-in-316-stainless-steel-swing-check-valve-threaded-npt-949358","title":"2 in. 316 Stainless Steel Swing Check Valve, Threaded (NPT) (949358)","description":"\u003cp\u003eThe \u003cstrong\u003e2 in. 316 Stainless Steel Swing Check Valve (#949358)\u003c\/strong\u003e is a 316 stainless steel swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow). 316 stainless construction resists corrosion in chemical, marine, and high-purity service. Built for reliable, low-maintenance operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock — ships in 2–3 business days.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949358\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eThreaded (NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003e316 stainless steel — corrosion-resistant for chemical, marine, and high-purity service\u003c\/li\u003e\n\u003cli\u003eThreaded (NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eChemical processing, marine, water treatment, high-purity and food-grade lines, pump discharge, and general industrial flow systems requiring corrosion-resistant backflow prevention.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740414750935,"sku":"949358","price":146.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949358.jpg?v=1780648809"},{"product_id":"3-4-in-lead-free-brass-swing-check-valve-female-npt-940353lf","title":"3\/4 in. Lead-Free Brass Swing Check Valve, Female NPT | 940353LF","description":"\u003cp\u003eThe \u003cstrong\u003e3\/4 in. Lead-Free Brass Swing Check Valve\u003c\/strong\u003e (940353LF) is a lead-free brass swing check valve suitable for potable water supply lines — lead-free per the federal Safe Drinking Water Act definition; certification documents available on request. Female NPT connections for threaded installation.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940353LF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eSwing check valve, lead-free brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT x Female NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eLead-Free Brass (≤0.25% Pb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e200 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eFull manufacturer spec sheet available on request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLead-free brass body — ≤0.25% lead by weighted average, meets the federal Reduction of Lead in Drinking Water Act (2014)\u003c\/li\u003e\n\u003cli\u003eSwing check design — full port, low headloss when open\u003c\/li\u003e\n\u003cli\u003eFemale NPT connections for straightforward threaded installation\u003c\/li\u003e\n\u003cli\u003eSuitable for potable water supply lines — new construction, repairs, and replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003ePotable water distribution, domestic water supply, and municipal service lines where lead-free certification is required by code. Backflow prevention on pump discharge and supply lines feeding drinking water systems.\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/how-to-choose-the-right-valve\"\u003eHow to Choose the Right Valve for Your Application\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Sizes in This Series\u003c\/h2\u003e\n\u003cp\u003eThe Lead-Free Brass Swing Check Valve (FIP x FIP) is available in the following sizes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003cth\u003eCart\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/12-fip-swing-check-valve-lead-free-940352lf\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940352LF\u003c\/td\u003e\n\u003ctd\u003e$12.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777340119\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\/4 in.\u003c\/td\u003e\n\u003ctd\u003e940353LF\u003c\/td\u003e\n\u003ctd\u003e$11.99\u003c\/td\u003e\n\u003ctd\u003e(this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-in-lead-free-brass-swing-check-valve-female-npt-940354lf\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940354LF\u003c\/td\u003e\n\u003ctd\u003e$18.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246050519\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-lead-free-brass-swing-check-valve-female-npt-940355lf\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940355LF\u003c\/td\u003e\n\u003ctd\u003e$32.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246116055\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-lead-free-brass-swing-check-valve-female-npt-940356lf\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940356LF\u003c\/td\u003e\n\u003ctd\u003e$42.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246148823\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-lead-free-brass-swing-check-valve-female-npt-940357lf\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940357LF\u003c\/td\u003e\n\u003ctd\u003e$64.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246181591\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-1-2-in-lead-free-brass-swing-check-valve-ips-threaded-940358lf\"\u003e2-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940358LF\u003c\/td\u003e\n\u003ctd\u003e$147.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246214359\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-in-lead-free-brass-swing-check-valve-ips-threaded-940359lf\"\u003e3 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940359LF\u003c\/td\u003e\n\u003ctd\u003e$236.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246247127\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/4-in-lead-free-brass-swing-check-valve-ips-threaded-940360lf\"\u003e4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940360LF\u003c\/td\u003e\n\u003ctd\u003e$338.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246279895\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeed copper (sweat) connections instead of threaded? See the \u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940363lf\"\u003eCopper x Copper Lead-Free Swing Check series\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":49429246017751,"sku":"940353LF","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940353LF.jpg?v=1783972482"},{"product_id":"1-in-lead-free-brass-swing-check-valve-female-npt-940354lf","title":"1 in. Lead-Free Brass Swing Check Valve, Female NPT | 940354LF","description":"\u003cp\u003eThe \u003cstrong\u003e1 in. Lead-Free Brass Swing Check Valve\u003c\/strong\u003e (940354LF) is a lead-free brass swing check valve suitable for potable water supply lines — lead-free per the federal Safe Drinking Water Act definition; certification documents available on request. Female NPT connections for threaded installation.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940354LF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eSwing check valve, lead-free brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT x Female NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eLead-Free Brass (≤0.25% Pb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e200 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eFull manufacturer spec sheet available on request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLead-free brass body — ≤0.25% lead by weighted average, meets the federal Reduction of Lead in Drinking Water Act (2014)\u003c\/li\u003e\n\u003cli\u003eSwing check design — full port, low headloss when open\u003c\/li\u003e\n\u003cli\u003eFemale NPT connections for straightforward threaded installation\u003c\/li\u003e\n\u003cli\u003eSuitable for potable water supply lines — new construction, repairs, and replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003ePotable water distribution, domestic water supply, and municipal service lines where lead-free certification is required by code. Backflow prevention on pump discharge and supply lines feeding drinking water systems.\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/how-to-choose-the-right-valve\"\u003eHow to Choose the Right Valve for Your Application\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Sizes in This Series\u003c\/h2\u003e\n\u003cp\u003eThe Lead-Free Brass Swing Check Valve (FIP x FIP) is available in the following sizes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003cth\u003eCart\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/12-fip-swing-check-valve-lead-free-940352lf\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940352LF\u003c\/td\u003e\n\u003ctd\u003e$12.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777340119\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-female-npt-940353lf\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940353LF\u003c\/td\u003e\n\u003ctd\u003e$11.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246017751\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003ctd\u003e940354LF\u003c\/td\u003e\n\u003ctd\u003e$18.99\u003c\/td\u003e\n\u003ctd\u003e(this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-lead-free-brass-swing-check-valve-female-npt-940355lf\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940355LF\u003c\/td\u003e\n\u003ctd\u003e$32.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246116055\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-lead-free-brass-swing-check-valve-female-npt-940356lf\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940356LF\u003c\/td\u003e\n\u003ctd\u003e$42.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246148823\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-lead-free-brass-swing-check-valve-female-npt-940357lf\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940357LF\u003c\/td\u003e\n\u003ctd\u003e$64.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246181591\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-1-2-in-lead-free-brass-swing-check-valve-ips-threaded-940358lf\"\u003e2-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940358LF\u003c\/td\u003e\n\u003ctd\u003e$147.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246214359\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-in-lead-free-brass-swing-check-valve-ips-threaded-940359lf\"\u003e3 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940359LF\u003c\/td\u003e\n\u003ctd\u003e$236.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246247127\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/4-in-lead-free-brass-swing-check-valve-ips-threaded-940360lf\"\u003e4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940360LF\u003c\/td\u003e\n\u003ctd\u003e$338.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246279895\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeed copper (sweat) connections instead of threaded? See the \u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940363lf\"\u003eCopper x Copper Lead-Free Swing Check series\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":49429246050519,"sku":"940354LF","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940354LF.jpg?v=1783972482"},{"product_id":"1-1-4-in-lead-free-brass-swing-check-valve-female-npt-940355lf","title":"1-1\/4 in. Lead-Free Brass Swing Check Valve, Female NPT | 940355LF","description":"\u003cp\u003eThe \u003cstrong\u003e1-1\/4 in. Lead-Free Brass Swing Check Valve\u003c\/strong\u003e (940355LF) is a lead-free brass swing check valve suitable for potable water supply lines — lead-free per the federal Safe Drinking Water Act definition; certification documents available on request. Female NPT connections for threaded installation.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940355LF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eSwing check valve, lead-free brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT x Female NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eLead-Free Brass (≤0.25% Pb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e200 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eFull manufacturer spec sheet available on request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLead-free brass body — ≤0.25% lead by weighted average, meets the federal Reduction of Lead in Drinking Water Act (2014)\u003c\/li\u003e\n\u003cli\u003eSwing check design — full port, low headloss when open\u003c\/li\u003e\n\u003cli\u003eFemale NPT connections for straightforward threaded installation\u003c\/li\u003e\n\u003cli\u003eSuitable for potable water supply lines — new construction, repairs, and replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003ePotable water distribution, domestic water supply, and municipal service lines where lead-free certification is required by code. Backflow prevention on pump discharge and supply lines feeding drinking water systems.\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/how-to-choose-the-right-valve\"\u003eHow to Choose the Right Valve for Your Application\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Sizes in This Series\u003c\/h2\u003e\n\u003cp\u003eThe Lead-Free Brass Swing Check Valve (FIP x FIP) is available in the following sizes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003cth\u003eCart\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/12-fip-swing-check-valve-lead-free-940352lf\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940352LF\u003c\/td\u003e\n\u003ctd\u003e$12.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777340119\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-female-npt-940353lf\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940353LF\u003c\/td\u003e\n\u003ctd\u003e$11.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246017751\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-in-lead-free-brass-swing-check-valve-female-npt-940354lf\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940354LF\u003c\/td\u003e\n\u003ctd\u003e$18.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246050519\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1-1\/4 in.\u003c\/td\u003e\n\u003ctd\u003e940355LF\u003c\/td\u003e\n\u003ctd\u003e$32.99\u003c\/td\u003e\n\u003ctd\u003e(this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-lead-free-brass-swing-check-valve-female-npt-940356lf\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940356LF\u003c\/td\u003e\n\u003ctd\u003e$42.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246148823\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-lead-free-brass-swing-check-valve-female-npt-940357lf\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940357LF\u003c\/td\u003e\n\u003ctd\u003e$64.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246181591\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-1-2-in-lead-free-brass-swing-check-valve-ips-threaded-940358lf\"\u003e2-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940358LF\u003c\/td\u003e\n\u003ctd\u003e$147.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246214359\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-in-lead-free-brass-swing-check-valve-ips-threaded-940359lf\"\u003e3 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940359LF\u003c\/td\u003e\n\u003ctd\u003e$236.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246247127\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/4-in-lead-free-brass-swing-check-valve-ips-threaded-940360lf\"\u003e4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940360LF\u003c\/td\u003e\n\u003ctd\u003e$338.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246279895\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeed copper (sweat) connections instead of threaded? See the \u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940363lf\"\u003eCopper x Copper Lead-Free Swing Check series\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":49429246116055,"sku":"940355LF","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940355LF.jpg?v=1783972482"},{"product_id":"1-1-2-in-lead-free-brass-swing-check-valve-female-npt-940356lf","title":"1-1\/2 in. Lead-Free Brass Swing Check Valve, Female NPT | 940356LF","description":"\u003cp\u003eThe \u003cstrong\u003e1-1\/2 in. Lead-Free Brass Swing Check Valve\u003c\/strong\u003e (940356LF) is a lead-free brass swing check valve suitable for potable water supply lines — lead-free per the federal Safe Drinking Water Act definition; certification documents available on request. Female NPT connections for threaded installation.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940356LF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eSwing check valve, lead-free brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT x Female NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eLead-Free Brass (≤0.25% Pb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e200 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eFull manufacturer spec sheet available on request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLead-free brass body — ≤0.25% lead by weighted average, meets the federal Reduction of Lead in Drinking Water Act (2014)\u003c\/li\u003e\n\u003cli\u003eSwing check design — full port, low headloss when open\u003c\/li\u003e\n\u003cli\u003eFemale NPT connections for straightforward threaded installation\u003c\/li\u003e\n\u003cli\u003eSuitable for potable water supply lines — new construction, repairs, and replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003ePotable water distribution, domestic water supply, and municipal service lines where lead-free certification is required by code. Backflow prevention on pump discharge and supply lines feeding drinking water systems.\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/how-to-choose-the-right-valve\"\u003eHow to Choose the Right Valve for Your Application\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Sizes in This Series\u003c\/h2\u003e\n\u003cp\u003eThe Lead-Free Brass Swing Check Valve (FIP x FIP) is available in the following sizes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003cth\u003eCart\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/12-fip-swing-check-valve-lead-free-940352lf\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940352LF\u003c\/td\u003e\n\u003ctd\u003e$12.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777340119\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-female-npt-940353lf\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940353LF\u003c\/td\u003e\n\u003ctd\u003e$11.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246017751\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-in-lead-free-brass-swing-check-valve-female-npt-940354lf\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940354LF\u003c\/td\u003e\n\u003ctd\u003e$18.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246050519\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-lead-free-brass-swing-check-valve-female-npt-940355lf\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940355LF\u003c\/td\u003e\n\u003ctd\u003e$32.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246116055\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1-1\/2 in.\u003c\/td\u003e\n\u003ctd\u003e940356LF\u003c\/td\u003e\n\u003ctd\u003e$42.99\u003c\/td\u003e\n\u003ctd\u003e(this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-lead-free-brass-swing-check-valve-female-npt-940357lf\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940357LF\u003c\/td\u003e\n\u003ctd\u003e$64.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246181591\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-1-2-in-lead-free-brass-swing-check-valve-ips-threaded-940358lf\"\u003e2-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940358LF\u003c\/td\u003e\n\u003ctd\u003e$147.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246214359\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-in-lead-free-brass-swing-check-valve-ips-threaded-940359lf\"\u003e3 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940359LF\u003c\/td\u003e\n\u003ctd\u003e$236.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246247127\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/4-in-lead-free-brass-swing-check-valve-ips-threaded-940360lf\"\u003e4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940360LF\u003c\/td\u003e\n\u003ctd\u003e$338.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246279895\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeed copper (sweat) connections instead of threaded? See the \u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940363lf\"\u003eCopper x Copper Lead-Free Swing Check series\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":49429246148823,"sku":"940356LF","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940356LF.jpg?v=1783972482"},{"product_id":"2-in-lead-free-brass-swing-check-valve-female-npt-940357lf","title":"2 in. Lead-Free Brass Swing Check Valve, Female NPT | 940357LF","description":"\u003cp\u003eThe \u003cstrong\u003e2 in. Lead-Free Brass Swing Check Valve\u003c\/strong\u003e (940357LF) is a lead-free brass swing check valve suitable for potable water supply lines — lead-free per the federal Safe Drinking Water Act definition; certification documents available on request. Female NPT connections for threaded installation.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940357LF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eSwing check valve, lead-free brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT x Female NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eLead-Free Brass (≤0.25% Pb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e200 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eFull manufacturer spec sheet available on request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLead-free brass body — ≤0.25% lead by weighted average, meets the federal Reduction of Lead in Drinking Water Act (2014)\u003c\/li\u003e\n\u003cli\u003eSwing check design — full port, low headloss when open\u003c\/li\u003e\n\u003cli\u003eFemale NPT connections for straightforward threaded installation\u003c\/li\u003e\n\u003cli\u003eSuitable for potable water supply lines — new construction, repairs, and replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003ePotable water distribution, domestic water supply, and municipal service lines where lead-free certification is required by code. Backflow prevention on pump discharge and supply lines feeding drinking water systems.\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/how-to-choose-the-right-valve\"\u003eHow to Choose the Right Valve for Your Application\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Sizes in This Series\u003c\/h2\u003e\n\u003cp\u003eThe Lead-Free Brass Swing Check Valve (FIP x FIP) is available in the following sizes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003cth\u003eCart\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/12-fip-swing-check-valve-lead-free-940352lf\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940352LF\u003c\/td\u003e\n\u003ctd\u003e$12.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777340119\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-female-npt-940353lf\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940353LF\u003c\/td\u003e\n\u003ctd\u003e$11.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246017751\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-in-lead-free-brass-swing-check-valve-female-npt-940354lf\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940354LF\u003c\/td\u003e\n\u003ctd\u003e$18.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246050519\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-lead-free-brass-swing-check-valve-female-npt-940355lf\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940355LF\u003c\/td\u003e\n\u003ctd\u003e$32.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246116055\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-lead-free-brass-swing-check-valve-female-npt-940356lf\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940356LF\u003c\/td\u003e\n\u003ctd\u003e$42.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246148823\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003ctd\u003e940357LF\u003c\/td\u003e\n\u003ctd\u003e$64.99\u003c\/td\u003e\n\u003ctd\u003e(this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-1-2-in-lead-free-brass-swing-check-valve-ips-threaded-940358lf\"\u003e2-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940358LF\u003c\/td\u003e\n\u003ctd\u003e$147.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246214359\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-in-lead-free-brass-swing-check-valve-ips-threaded-940359lf\"\u003e3 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940359LF\u003c\/td\u003e\n\u003ctd\u003e$236.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246247127\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/4-in-lead-free-brass-swing-check-valve-ips-threaded-940360lf\"\u003e4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940360LF\u003c\/td\u003e\n\u003ctd\u003e$338.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246279895\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeed copper (sweat) connections instead of threaded? See the \u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940363lf\"\u003eCopper x Copper Lead-Free Swing Check series\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":49429246181591,"sku":"940357LF","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940357LF.jpg?v=1783972482"},{"product_id":"2-1-2-in-lead-free-brass-swing-check-valve-ips-threaded-940358lf","title":"2-1\/2 in. Lead-Free Brass Swing Check Valve, IPS Threaded | 940358LF","description":"\u003cp\u003eThe \u003cstrong\u003e2-1\/2 in. Lead-Free Brass IPS Swing Check Valve\u003c\/strong\u003e (940358LF) is a lead-free brass swing check valve suitable for potable water supply lines — lead-free per the federal Safe Drinking Water Act definition; certification documents available on request. IPS threaded connections for threaded installation.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940358LF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e2-1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eSwing check valve, lead-free brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eIPS Threaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eLead-Free Brass (≤0.25% Pb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e200 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eFull manufacturer spec sheet available on request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLead-free brass body — ≤0.25% lead by weighted average, meets the federal Reduction of Lead in Drinking Water Act (2014)\u003c\/li\u003e\n\u003cli\u003eSwing check design — full port, low headloss when open\u003c\/li\u003e\n\u003cli\u003eIPS threaded connections for straightforward threaded installation\u003c\/li\u003e\n\u003cli\u003eSuitable for potable water supply lines — new construction, repairs, and replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003ePotable water distribution, domestic water supply, and municipal service lines where lead-free certification is required by code. Backflow prevention on pump discharge and supply lines feeding drinking water systems.\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/how-to-choose-the-right-valve\"\u003eHow to Choose the Right Valve for Your Application\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Sizes in This Series\u003c\/h2\u003e\n\u003cp\u003eThe Lead-Free Brass Swing Check Valve (FIP x FIP) is available in the following sizes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003cth\u003eCart\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/12-fip-swing-check-valve-lead-free-940352lf\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940352LF\u003c\/td\u003e\n\u003ctd\u003e$12.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777340119\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-female-npt-940353lf\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940353LF\u003c\/td\u003e\n\u003ctd\u003e$11.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246017751\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-in-lead-free-brass-swing-check-valve-female-npt-940354lf\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940354LF\u003c\/td\u003e\n\u003ctd\u003e$18.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246050519\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-lead-free-brass-swing-check-valve-female-npt-940355lf\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940355LF\u003c\/td\u003e\n\u003ctd\u003e$32.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246116055\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-lead-free-brass-swing-check-valve-female-npt-940356lf\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940356LF\u003c\/td\u003e\n\u003ctd\u003e$42.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246148823\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-lead-free-brass-swing-check-valve-female-npt-940357lf\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940357LF\u003c\/td\u003e\n\u003ctd\u003e$64.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246181591\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2-1\/2 in.\u003c\/td\u003e\n\u003ctd\u003e940358LF\u003c\/td\u003e\n\u003ctd\u003e$147.99\u003c\/td\u003e\n\u003ctd\u003e(this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-in-lead-free-brass-swing-check-valve-ips-threaded-940359lf\"\u003e3 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940359LF\u003c\/td\u003e\n\u003ctd\u003e$236.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246247127\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/4-in-lead-free-brass-swing-check-valve-ips-threaded-940360lf\"\u003e4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940360LF\u003c\/td\u003e\n\u003ctd\u003e$338.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246279895\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeed copper (sweat) connections instead of threaded? See the \u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940363lf\"\u003eCopper x Copper Lead-Free Swing Check series\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":49429246214359,"sku":"940358LF","price":147.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940358LF.jpg?v=1783972482"},{"product_id":"3-in-lead-free-brass-swing-check-valve-ips-threaded-940359lf","title":"3 in. Lead-Free Brass Swing Check Valve, IPS Threaded | 940359LF","description":"\u003cp\u003eThe \u003cstrong\u003e3 in. Lead-Free Brass IPS Swing Check Valve\u003c\/strong\u003e (940359LF) is a lead-free brass swing check valve suitable for potable water supply lines — lead-free per the federal Safe Drinking Water Act definition; certification documents available on request. IPS threaded connections for threaded installation.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940359LF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eSwing check valve, lead-free brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eIPS Threaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eLead-Free Brass (≤0.25% Pb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e200 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eFull manufacturer spec sheet available on request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLead-free brass body — ≤0.25% lead by weighted average, meets the federal Reduction of Lead in Drinking Water Act (2014)\u003c\/li\u003e\n\u003cli\u003eSwing check design — full port, low headloss when open\u003c\/li\u003e\n\u003cli\u003eIPS threaded connections for straightforward threaded installation\u003c\/li\u003e\n\u003cli\u003eSuitable for potable water supply lines — new construction, repairs, and replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003ePotable water distribution, domestic water supply, and municipal service lines where lead-free certification is required by code. Backflow prevention on pump discharge and supply lines feeding drinking water systems.\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/how-to-choose-the-right-valve\"\u003eHow to Choose the Right Valve for Your Application\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Sizes in This Series\u003c\/h2\u003e\n\u003cp\u003eThe Lead-Free Brass Swing Check Valve (FIP x FIP) is available in the following sizes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003cth\u003eCart\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/12-fip-swing-check-valve-lead-free-940352lf\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940352LF\u003c\/td\u003e\n\u003ctd\u003e$12.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777340119\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-female-npt-940353lf\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940353LF\u003c\/td\u003e\n\u003ctd\u003e$11.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246017751\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-in-lead-free-brass-swing-check-valve-female-npt-940354lf\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940354LF\u003c\/td\u003e\n\u003ctd\u003e$18.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246050519\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-lead-free-brass-swing-check-valve-female-npt-940355lf\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940355LF\u003c\/td\u003e\n\u003ctd\u003e$32.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246116055\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-lead-free-brass-swing-check-valve-female-npt-940356lf\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940356LF\u003c\/td\u003e\n\u003ctd\u003e$42.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246148823\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-lead-free-brass-swing-check-valve-female-npt-940357lf\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940357LF\u003c\/td\u003e\n\u003ctd\u003e$64.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246181591\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-1-2-in-lead-free-brass-swing-check-valve-ips-threaded-940358lf\"\u003e2-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940358LF\u003c\/td\u003e\n\u003ctd\u003e$147.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246214359\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003ctd\u003e940359LF\u003c\/td\u003e\n\u003ctd\u003e$236.99\u003c\/td\u003e\n\u003ctd\u003e(this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/4-in-lead-free-brass-swing-check-valve-ips-threaded-940360lf\"\u003e4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940360LF\u003c\/td\u003e\n\u003ctd\u003e$338.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246279895\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeed copper (sweat) connections instead of threaded? See the \u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940363lf\"\u003eCopper x Copper Lead-Free Swing Check series\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":49429246247127,"sku":"940359LF","price":236.99,"currency_code":"USD","in_stock":true}]},{"product_id":"4-in-lead-free-brass-swing-check-valve-ips-threaded-940360lf","title":"4 in. Lead-Free Brass Swing Check Valve, IPS Threaded | 940360LF","description":"\u003cp\u003eThe \u003cstrong\u003e4 in. Lead-Free Brass IPS Swing Check Valve\u003c\/strong\u003e (940360LF) is a lead-free brass swing check valve suitable for potable water supply lines — lead-free per the federal Safe Drinking Water Act definition; certification documents available on request. IPS threaded connections for threaded installation.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940360LF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eSwing check valve, lead-free brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eIPS Threaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eLead-Free Brass (≤0.25% Pb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e200 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eFull manufacturer spec sheet available on request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLead-free brass body — ≤0.25% lead by weighted average, meets the federal Reduction of Lead in Drinking Water Act (2014)\u003c\/li\u003e\n\u003cli\u003eSwing check design — full port, low headloss when open\u003c\/li\u003e\n\u003cli\u003eIPS threaded connections for straightforward threaded installation\u003c\/li\u003e\n\u003cli\u003eSuitable for potable water supply lines — new construction, repairs, and replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003ePotable water distribution, domestic water supply, and municipal service lines where lead-free certification is required by code. Backflow prevention on pump discharge and supply lines feeding drinking water systems.\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/how-to-choose-the-right-valve\"\u003eHow to Choose the Right Valve for Your Application\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Sizes in This Series\u003c\/h2\u003e\n\u003cp\u003eThe Lead-Free Brass Swing Check Valve (FIP x FIP) is available in the following sizes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003cth\u003eCart\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/12-fip-swing-check-valve-lead-free-940352lf\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940352LF\u003c\/td\u003e\n\u003ctd\u003e$12.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777340119\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-female-npt-940353lf\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940353LF\u003c\/td\u003e\n\u003ctd\u003e$11.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246017751\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-in-lead-free-brass-swing-check-valve-female-npt-940354lf\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940354LF\u003c\/td\u003e\n\u003ctd\u003e$18.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246050519\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-lead-free-brass-swing-check-valve-female-npt-940355lf\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940355LF\u003c\/td\u003e\n\u003ctd\u003e$32.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246116055\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-lead-free-brass-swing-check-valve-female-npt-940356lf\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940356LF\u003c\/td\u003e\n\u003ctd\u003e$42.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246148823\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-lead-free-brass-swing-check-valve-female-npt-940357lf\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940357LF\u003c\/td\u003e\n\u003ctd\u003e$64.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246181591\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-1-2-in-lead-free-brass-swing-check-valve-ips-threaded-940358lf\"\u003e2-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940358LF\u003c\/td\u003e\n\u003ctd\u003e$147.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246214359\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-in-lead-free-brass-swing-check-valve-ips-threaded-940359lf\"\u003e3 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940359LF\u003c\/td\u003e\n\u003ctd\u003e$236.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246247127\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 in.\u003c\/td\u003e\n\u003ctd\u003e940360LF\u003c\/td\u003e\n\u003ctd\u003e$338.99\u003c\/td\u003e\n\u003ctd\u003e(this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeed copper (sweat) connections instead of threaded? See the \u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940363lf\"\u003eCopper x Copper Lead-Free Swing Check series\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":49429246279895,"sku":"940360LF","price":338.99,"currency_code":"USD","in_stock":true}]},{"product_id":"3-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940363lf","title":"3\/4 in. Lead-Free Brass Swing Check Valve, Copper x Copper | 940363LF","description":"\u003cp\u003eThe \u003cstrong\u003e3\/4 in. Copper x Copper Swing Check Valve, Lead-Free\u003c\/strong\u003e (940363LF) is a lead-free swing check valve suitable for potable water supply lines — lead-free per the federal Safe Drinking Water Act definition; certification documents available on request. Copper x copper (solder) end connections for direct installation in copper water supply piping.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940363LF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eSwing check valve, lead-free brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eCopper x Copper (solder)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eLead-Free Brass (≤0.25% Pb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e200 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eFull manufacturer spec sheet available on request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLead-free brass body — ≤0.25% lead by weighted average, meets the federal Reduction of Lead in Drinking Water Act (2014)\u003c\/li\u003e\n\u003cli\u003eSwing check design — full port, low headloss when open\u003c\/li\u003e\n\u003cli\u003eCopper x copper (solder) connections for direct installation in copper piping\u003c\/li\u003e\n\u003cli\u003eSuitable for potable water supply lines — new construction, repairs, and replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003ePotable water distribution, domestic water supply, and municipal service lines where lead-free certification is required by code. Backflow prevention on pump discharge and supply lines feeding drinking water systems.\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/how-to-choose-the-right-valve\"\u003eHow to Choose the Right Valve for Your Application\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Sizes in This Series\u003c\/h2\u003e\n\u003cp\u003eThe Lead-Free Brass Swing Check Valve (Copper x Copper) is available in the following sizes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003cth\u003eCart\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/12-cxc-swing-check-valve-lead-free-940362lf\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940362LF\u003c\/td\u003e\n\u003ctd\u003e$9.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777635031\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\/4 in.\u003c\/td\u003e\n\u003ctd\u003e940363LF\u003c\/td\u003e\n\u003ctd\u003e$10.99\u003c\/td\u003e\n\u003ctd\u003e(this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-cxc-swing-check-valve-lead-free-940364lf\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940364LF\u003c\/td\u003e\n\u003ctd\u003e$18.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777700567\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940365lf\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940365LF\u003c\/td\u003e\n\u003ctd\u003e$21.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246509271\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-lead-free-brass-swing-check-valve-copper-x-copper-940366lf\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940366LF\u003c\/td\u003e\n\u003ctd\u003e$32.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246640343\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-lead-free-brass-swing-check-valve-copper-x-copper-940367lf\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940367LF\u003c\/td\u003e\n\u003ctd\u003e$52.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246542039\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeed threaded (FIP) connections instead of solder? See the \u003ca href=\"\/products\/12-fip-swing-check-valve-lead-free-940352lf\"\u003eFIP x FIP Lead-Free Swing Check series\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":49429246476503,"sku":"940363LF","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940363LF.jpg?v=1783972494"},{"product_id":"1-1-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940365lf","title":"1-1\/4 in. Lead-Free Brass Swing Check Valve, Copper x Copper | 940365LF","description":"\u003cp\u003eThe \u003cstrong\u003e1-1\/4 in. Copper x Copper Swing Check Valve, Lead-Free\u003c\/strong\u003e (940365LF) is a lead-free swing check valve suitable for potable water supply lines — lead-free per the federal Safe Drinking Water Act definition; certification documents available on request. Copper x copper (solder) end connections for direct installation in copper water supply piping.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940365LF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eSwing check valve, lead-free brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eCopper x Copper (solder)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eLead-Free Brass (≤0.25% Pb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e200 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eFull manufacturer spec sheet available on request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLead-free brass body — ≤0.25% lead by weighted average, meets the federal Reduction of Lead in Drinking Water Act (2014)\u003c\/li\u003e\n\u003cli\u003eSwing check design — full port, low headloss when open\u003c\/li\u003e\n\u003cli\u003eCopper x copper (solder) connections for direct installation in copper piping\u003c\/li\u003e\n\u003cli\u003eSuitable for potable water supply lines — new construction, repairs, and replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003ePotable water distribution, domestic water supply, and municipal service lines where lead-free certification is required by code. Backflow prevention on pump discharge and supply lines feeding drinking water systems.\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/how-to-choose-the-right-valve\"\u003eHow to Choose the Right Valve for Your Application\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Sizes in This Series\u003c\/h2\u003e\n\u003cp\u003eThe Lead-Free Brass Swing Check Valve (Copper x Copper) is available in the following sizes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003cth\u003eCart\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/12-cxc-swing-check-valve-lead-free-940362lf\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940362LF\u003c\/td\u003e\n\u003ctd\u003e$9.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777635031\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940363lf\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940363LF\u003c\/td\u003e\n\u003ctd\u003e$10.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246476503\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-cxc-swing-check-valve-lead-free-940364lf\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940364LF\u003c\/td\u003e\n\u003ctd\u003e$18.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777700567\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1-1\/4 in.\u003c\/td\u003e\n\u003ctd\u003e940365LF\u003c\/td\u003e\n\u003ctd\u003e$21.99\u003c\/td\u003e\n\u003ctd\u003e(this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-lead-free-brass-swing-check-valve-copper-x-copper-940366lf\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940366LF\u003c\/td\u003e\n\u003ctd\u003e$32.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246640343\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-lead-free-brass-swing-check-valve-copper-x-copper-940367lf\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940367LF\u003c\/td\u003e\n\u003ctd\u003e$52.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246542039\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeed threaded (FIP) connections instead of solder? See the \u003ca href=\"\/products\/12-fip-swing-check-valve-lead-free-940352lf\"\u003eFIP x FIP Lead-Free Swing Check series\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":49429246509271,"sku":"940365LF","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940365LF.jpg?v=1783972494"},{"product_id":"2-in-lead-free-brass-swing-check-valve-copper-x-copper-940367lf","title":"2 in. Lead-Free Brass Swing Check Valve, Copper x Copper | 940367LF","description":"\u003cp\u003eThe \u003cstrong\u003e2 in. Copper x Copper Swing Check Valve, Lead-Free\u003c\/strong\u003e (940367LF) is a lead-free swing check valve suitable for potable water supply lines — lead-free per the federal Safe Drinking Water Act definition; certification documents available on request. Copper x copper (solder) end connections for direct installation in copper water supply piping.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940367LF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eSwing check valve, lead-free brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eCopper x Copper (solder)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eLead-Free Brass (≤0.25% Pb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e200 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eFull manufacturer spec sheet available on request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLead-free brass body — ≤0.25% lead by weighted average, meets the federal Reduction of Lead in Drinking Water Act (2014)\u003c\/li\u003e\n\u003cli\u003eSwing check design — full port, low headloss when open\u003c\/li\u003e\n\u003cli\u003eCopper x copper (solder) connections for direct installation in copper piping\u003c\/li\u003e\n\u003cli\u003eSuitable for potable water supply lines — new construction, repairs, and replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003ePotable water distribution, domestic water supply, and municipal service lines where lead-free certification is required by code. Backflow prevention on pump discharge and supply lines feeding drinking water systems.\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/how-to-choose-the-right-valve\"\u003eHow to Choose the Right Valve for Your Application\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Sizes in This Series\u003c\/h2\u003e\n\u003cp\u003eThe Lead-Free Brass Swing Check Valve (Copper x Copper) is available in the following sizes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003cth\u003eCart\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/12-cxc-swing-check-valve-lead-free-940362lf\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940362LF\u003c\/td\u003e\n\u003ctd\u003e$9.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777635031\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940363lf\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940363LF\u003c\/td\u003e\n\u003ctd\u003e$10.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246476503\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-cxc-swing-check-valve-lead-free-940364lf\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940364LF\u003c\/td\u003e\n\u003ctd\u003e$18.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777700567\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940365lf\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940365LF\u003c\/td\u003e\n\u003ctd\u003e$21.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246509271\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-lead-free-brass-swing-check-valve-copper-x-copper-940366lf\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940366LF\u003c\/td\u003e\n\u003ctd\u003e$32.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246640343\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003ctd\u003e940367LF\u003c\/td\u003e\n\u003ctd\u003e$52.99\u003c\/td\u003e\n\u003ctd\u003e(this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeed threaded (FIP) connections instead of solder? See the \u003ca href=\"\/products\/12-fip-swing-check-valve-lead-free-940352lf\"\u003eFIP x FIP Lead-Free Swing Check series\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":49429246542039,"sku":"940367LF","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_940367LF.jpg?v=1783972494"},{"product_id":"1-1-2-in-lead-free-brass-swing-check-valve-copper-x-copper-940366lf","title":"1-1\/2 in. Lead-Free Brass Swing Check Valve, Copper x Copper | 940366LF","description":"\u003cp\u003eThe \u003cstrong\u003e1-1\/2 in. Copper x Copper Swing Check Valve, Lead-Free\u003c\/strong\u003e (940366LF) is a lead-free swing check valve suitable for potable water supply lines — lead-free per the federal Safe Drinking Water Act definition; certification documents available on request. Copper x copper (solder) end connections for direct installation in copper water supply piping.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e940366LF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eSwing check valve, lead-free brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eCopper x Copper (solder)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eLead-Free Brass (≤0.25% Pb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e200 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eFull manufacturer spec sheet available on request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLead-free brass body — ≤0.25% lead by weighted average, meets the federal Reduction of Lead in Drinking Water Act (2014)\u003c\/li\u003e\n\u003cli\u003eSwing check design — full port, low headloss when open\u003c\/li\u003e\n\u003cli\u003eCopper x copper (solder) connections for direct installation in copper piping\u003c\/li\u003e\n\u003cli\u003eSuitable for potable water supply lines — new construction, repairs, and replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003ePotable water distribution, domestic water supply, and municipal service lines where lead-free certification is required by code. Backflow prevention on pump discharge and supply lines feeding drinking water systems.\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/how-to-choose-the-right-valve\"\u003eHow to Choose the Right Valve for Your Application\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Sizes in This Series\u003c\/h2\u003e\n\u003cp\u003eThe Lead-Free Brass Swing Check Valve (Copper x Copper) is available in the following sizes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003cth\u003eCart\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/12-cxc-swing-check-valve-lead-free-940362lf\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940362LF\u003c\/td\u003e\n\u003ctd\u003e$9.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777635031\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940363lf\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940363LF\u003c\/td\u003e\n\u003ctd\u003e$10.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246476503\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-cxc-swing-check-valve-lead-free-940364lf\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940364LF\u003c\/td\u003e\n\u003ctd\u003e$18.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646777700567\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-lead-free-brass-swing-check-valve-copper-x-copper-940365lf\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940365LF\u003c\/td\u003e\n\u003ctd\u003e$21.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246509271\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1-1\/2 in.\u003c\/td\u003e\n\u003ctd\u003e940366LF\u003c\/td\u003e\n\u003ctd\u003e$32.99\u003c\/td\u003e\n\u003ctd\u003e(this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-lead-free-brass-swing-check-valve-copper-x-copper-940367lf\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e940367LF\u003c\/td\u003e\n\u003ctd\u003e$52.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429246542039\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeed threaded (FIP) connections instead of solder? See the \u003ca href=\"\/products\/12-fip-swing-check-valve-lead-free-940352lf\"\u003eFIP x FIP Lead-Free Swing Check series\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":49429246640343,"sku":"940366LF","price":32.99,"currency_code":"USD","in_stock":true}]}],"url":"https:\/\/apexflowsolutions.com\/collections\/swing-check-valves.oembed?page=2","provider":"Apex Flow Solutions","version":"1.0","type":"link"}