Air Vent, Air Vent Connection Gender Not Applicable, Air Vent Connection Size Not Applicable, Air Vent Connection Type Not Applicable, Air Vent Type Float, Application Convectors, Radiators, Steam Mains, Body Material Brass, Configuration One Port, Float Material Brass, For Media Steam, Includes Expansion Tank Port Expansion Tank Connection Not Included, Inlet Port Connection Gender Male, Inlet Port Connection Size 3/4 in, Inlet Port Connection Type NPT, Inlet Port Location Bottom