Mc Alpine water seal tubular trap features an adjustable inlet suitable for all domestic repair, maintenance and improvement work. The anti-syphon valve neutralizes syphonic pressure before it reaches the trap's seal, providing the equivalent of a ventilated system. It features a Silentrap that will not unseal under high pressure or abnormal conditions, making it reliable and user-friendly. The McAlpine ASA10V is a 75mm water seal adjustable inlet tubular swivel anti-syphon (Silentrap) 'P' trap with a universal outlet. This trap is commonly used in plumbing to prevent sewer gases from entering a building through the drainage system. The anti-siphon (Silentrap) feature prevents the trap from being siphoned dry, ensuring the water seal remains intact and protecting the building from unpleasant odors and potential health hazards. The adjustable inlet allows for easy installation and alignment with the waste pipe, while the swivel 'P' shape offers flexibility in connection. The universal outlet connects to various waste pipes. Suitable for applications with risk of trap siphoning dry. Available in 1¼", 1½", and 2" sizes. 75mm Water Seal. Universal Compression Outlet suits all plastic, copper and lead pipe. Anti-Syphon Valve neutralises negative syphonic pressure and eliminates gurgling.