1½" Universal Outlet A1 rated Air flow capacity of 3 l/s For full information on Air Admittance Valves please see below 0 Brand:McAlpine Manufacturer Stock Code:VP2 EAN Code:5036484005793 Length:80 mm Width:140 mm Height:260 mm Weight:0.309 kg Manufacturer Guarantee:10 years Sub-Category:Valves Colour:Grey Brand:McAlpine Pack Size:1 Diameter (Inches):1.5 Category:Fittings