This McAlpine WM3 Standpipe Appliance Trap is designed for plumbing systems. It features a 75mm water seal and a 1 1/2" multifit compression outlet that is compatible with plastic, copper, and lead pipes. Manufactured from polypropylene, it conforms to EN 274-1:2002 standards. The multifit outlet offers flexibility for plumbing designs and connections. It also helps to eliminate gurgling sounds and noise. This standpipe trap is suitable for all pipes.