Efficiently remove air and other incondensable gases from the water system raise thermal efficiency of the system keep accuracy of flow measurement meters and regulating valves in the system reduce system noice Manufacturer Stock Code:2009082401 Height:50 mm Diameter:15 mm Weight:0.217 kg Sub-Category:Air Vents Brand:Pro Manufacturer Part Number:80712040 Warranty:1 Years Category:Brass Fittings and Accessories