PVC Water Supply Straight Pipe 1 2"- 4" Female Threaded Fittings Adapter Joint

Match the fitting size to your existing pipe's outer diameter (OD) or nominal pipe size. For example, a 20 mm fitting suits ½" nominal pipe, 25 mm suits ¾", 32 mm suits 1", and so on up to 110 mm for 4" pipe. If you are unsure, measure the OD of your existing pipe with calipers and select the corresponding variant from the Models dropdown above.

No. These PVC fittings are rated for cold water supply applications only, typically up to 40 °C (104 °F). For hot water, steam, or high-temperature process lines, a CPVC or metal fitting rated for the appropriate temperature and pressure should be used instead.

These fittings use BSP (British Standard Pipe) / metric threads, which are the most common standard for PVC plumbing fittings in most markets outside North America. If your existing pipework uses NPT (National Pipe Thread, common in the US), please confirm compatibility before ordering or use a BSP-to-NPT adapter.

Yes. Applying 2–3 wraps of PTFE (plumber's) tape to the male threads before assembly is strongly recommended to achieve a leak-free seal. Thread sealant compound can also be used as an alternative. Hand-tighten first, then use a strap wrench for a final ¼ to ½ turn — avoid over-tightening, which can crack PVC threads.

Rigid PVC fittings offer good tensile and compressive strength for cold water supply pressures (typically rated to 10–16 bar depending on size and wall thickness). They are corrosion-resistant and will not rust or scale internally. However, PVC is more susceptible to impact damage and UV degradation than metal, so fittings used in exposed outdoor locations should be protected from direct sunlight or painted with UV-resistant paint.

Yes. PVC is inherently resistant to corrosion, rust, and most common water treatment chemicals, making these fittings well-suited for underground water supply lines and irrigation systems. For above-ground outdoor installations, shield the fittings from prolonged UV exposure to prevent surface degradation over time.

Absolutely. These straight female-threaded PVC adapters are widely used in drip irrigation manifolds, garden hose bib connections, and agricultural water distribution systems. The 20 mm (½") and 25 mm (¾") sizes are particularly popular for residential garden irrigation, while the 50 mm (1½") to 110 mm (4") sizes suit larger agricultural or commercial irrigation mains.

If you need a single fitting for a repair or a one-off connection, the 1 Pcs option is the most cost-effective choice. The 10 Pcs pack offers a lower per-unit cost and is ideal for new installations, project builds, or keeping maintenance stock on hand for future repairs. Both options ship in the same size and colour variant you select.