Split Unions

Connect inline equipment securely and make pump maintenance straightforward with our range of high-performance split unions and threaded quick-disconnect fittings. Engineered specifically for aquatic filtration systems, pond pump manifolds, and plant room setups, split unions provide a reliable, detachable joint between rigid solvent weld pipework and threaded equipment ports.

Manufactured from tough, fish-safe PVC-U, our split unions feature precision-moulded solvent weld sockets, female BSP threaded collars, and high-grade EPDM O-ring seals. The threaded collar tightens down easily by hand or strap wrench to create a completely watertight compression seal that easily resists pump vibration and continuous water pressure. When it is time to clean a pump impeller, replace a UV quartz sleeve, or bring equipment indoors for winter, simply loosen the threaded union collar to lift the unit away cleanly without cutting into fixed pipework or twisting connected lines.

Available in standard plumbing sizes including 1.5 inch and 2 inch diameters to suit most pond circulation pumps, UV clarifiers, and filtration ports, explore our complete split unions collection to find dependable, builder-approved disconnect fittings engineered for hassle-free equipment servicing and leak-free performance.