Sink bottle trap adjustable, anti vacuum valve | Valentin
McAlpine 1.5in x 50mm Water Seal Anti-Syphon Bath Trap SMP10V : Amazon.co.uk: DIY & Tools
50mm Seal Anti-Syphon Bath Trap | McAlpine Plumbing Products
McAlpine Plumbing Products - Tubular Swivel Anti-Syphon All One Trap ✓ Available in 1¼", 1½", and 2" sizes ✓ 75mm Water Seal ✓ Adjustable Inlet makes trap suitable for all domestic repair,
McAlpine Anti Vac Trap Replacement Piston and Cap - 39004077
Water coming out of AAV on anti-syphon bottle trap - ideas?! | DIYnot Forums