3/4 in. PVC Compression Coupling
3/4 in. PVC Compression Coupling
✓ In stock at our distribution warehouses — typically ships within 1–2 business days.
Flat-rate shipping, nationwide- Orders under $100: $9.95
- $100 – $499.99: $14.95
- Orders $500+: quoted — real freight for your order, not a flat guess
Volume order or crossing a competitor part number? Request a quote — usually answered the same business day.
The 3/4 in. PVC Compression Coupling is a Schedule 40 (white, standard) PVC threaded coupling for use in water treatment, chemical dosing, irrigation, pool, and industrial piping systems where corrosion resistance and chemical compatibility are required. PVC's inert chemistry makes it compatible with chlorine, sodium hypochlorite, dilute acids, caustic solutions, and most water treatment chemicals that attack brass or steel fittings.
Technical Specifications
| Specification | Value |
|---|---|
| Material | PVC (Polyvinyl Chloride) |
| Schedule | 40 |
| Connection Type | threaded |
| Shape | Coupling |
| Pressure Rating | 150–600 PSI (size-dependent at 73°F) |
Key Features
- PVC body — broad chemical resistance, no corrosion or metal leaching
- Schedule 40 — standard pressure service
- Threaded connections allow disassembly — use PTFE tape on male threads only
- Non-metallic — safe for DI water, RO systems, and potable water (NSF applications require NSF-marked fittings)
- White or gray color — check Schedule rating before mixing with other fittings
Common Applications
Water treatment chemical feed lines, RO permeate and concentrate circuits, pool and spa chemical systems, irrigation manifolds, municipal water distribution, and any all-PVC piping system requiring a corrosion-resistant, non-metallic structural fitting.