The McAlpine SC10V 75mm Water Seal Tubular Swivel Anti-Syphon (Silentrap) 'P' Trap with Universal Outlet is a plumbing fitting that is designed to provide a water seal between a waste pipe and a variety of different appliances, such as sinks, baths, and showers. The trap features a 75mm water seal, which prevents foul smells and gases from escaping into the room, and a universal outlet, which allows for easy installation with a range of different waste pipe materials. The anti-syphon (Silentrap) feature prevents air from being drawn through the trap, which can eliminate gurgling noises and improve drainage.