Push-to-connect fittings — also called push-in or John Guest style fittings — create a secure, tool-free connection to tubing with a single push. An internal collet grips the tube OD while an O-ring provides the pressure seal; to disconnect, press the release collar and withdraw the tube. Push-to-connect fittings are the fastest way to plumb pneumatic control systems, RO water purification, beverage dispensing equipment, and light-duty process instrumentation.
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1/8 in. Brass Push-In Union Connector -
1/8 in. Push-In Union Tee -
1/8 in. x 1/8 in. Brass Composite Push-In x Male NPT Swivel Elbow -
1/8 in. x 1/8 in. Plastic Composite Swivel Male Branch Tee -
1/8 in. x 1/8 in. Brass Push-In x Male NPT Adapter -
1/8 in. x 10-32 Brass Push-In x Male NPT Adapter -
5/32 in. Push-In Union Connector -
5/32 in. Push-In x 1/8 in. Male Stainless Steel Adapter -
5/32 in. x 1/4 in. Brass Composite Male Push-In Connector -
5/32 in. x 1/4 in. Plastic Composite Male Connector -
5/32 in. x 1/8 in. Brass Composite Male Push-In x NPT Swivel Run Tee -
5/32 in. x 1/8 in. Brass Push-In x Male NPT Swivel Branch Tee -
5/32 in. x 1/8 in. Push-In x Male NPT Swivel Elbow, Composite -
5/32 in. x 10-32 Plastic Composite Male Connector -
5/32 in. x 10-32 Push-In x Male NPT Nickel-Plated Adapter -
5/32 in. x 10-32 Push-In x Male NPT Swivel Elbow, Nickel-Plated -
4mm OD x 1/8 in. Male NPT Adapter, Nickel-Plated -
3/16 in. x 1/8 in. Plastic Composite Swivel Male Elbow -
5mm OD x 1/4 in. Male NPT Adapter, Nickel-Plated -
1/4 in. Push-In Union Connector, Viton -
1/4 in. Push-In Union Tee -
1/4 in. x 1/4 in. Brass Composite Male Push-In x NPT Swivel Run Tee -
1/4 in. x 1/4 in. Composite Stainless Steel Swivel Male Elbow -
1/4 in. x 1/4 in. Brass Push-In x Male NPT 90-Degree Elbow
Apex Flow Solutions stocks brass push-to-connect fittings in adapters, elbows, and tees — the three most common shapes for pneumatic and fluid control panels. All fittings are compatible with polyethylene (PE), nylon, and polyurethane tubing in standard metric and fractional OD sizes.
Where Push-to-Connect Fittings Excel
Push-to-connect is the standard connection method in compressed air control circuits, pneumatic solenoid valve manifolds, RO and water purification systems, ice machine water lines, and any application where frequent disconnection for maintenance is expected. The tool-free release makes service far faster than compression or flare fittings.
Tubing Compatibility
Push-to-connect fittings require round, burr-free tubing cut square. Ensure the tubing OD matches the fitting's rated size — most fittings are rated for a specific OD range. Soft tubing (polyurethane) should use a tube insert stiffener to prevent collapsing at the collet.