The McAlpine ASA10V Adjustable Inlet Tubular Swivel Anti-Syphon ‘P’ Trap is designed to maintain a 75mm water seal, preventing the backflow of foul gases into your living space. Its innovative anti-syphon valve neutralises negative pressure, eliminating gurgling sounds and ensuring efficient drainage. Constructed from high-temperature polypropylene, this trap is compatible with 1¼” pipework and features a universal compression outlet that suits all plastic, copper, and lead pipes. Ideal for basins and sinks in both domestic and commercial settings.