1¼" Universal Outlet Air flow capacity of 0.5 l/s For full information on Air Admittance Valves please see below 0 0 Brand: McAlpine Manufacturer Stock Code: VP15M EAN Code: 5036484005830 Length: 80 mm Width: 140 mm Height: 260 mm Weight: 0.31 kg Manufacturer Guarantee: 10 years Sub-Category: Valves Colour: Grey Brand: McAlpine Pack Size: 1 Diameter (Inches): 1.25 Category: Fittings