Fits 1½" and 2" waste pipe Solvent weld Outlet A1 rated Air flow capacity of 3.0 l/s For full information on Air Admittance Valves please see below 0 Brand:McAlpine Manufacturer Stock Code:VPSF-40/50 EAN Code:5036484024459 Length:61 mm Diameter:40 mm Manufacturer Guarantee:10 years Sub-Category:Valves Colour:Grey Brand:McAlpine Pack Size:1 Category:Fittings