Gorton GOR4AN #4 1/8" Angle Vapor Equalizing Valve 80-4

Gorton valves are made with five sizes of air outlets.  When the correctly sized valve is installed on each radiator, the system is balanced and equalized so as to provide fast, even, comfortable heating in every room.  Larger sizes of vapor equalizing valves should be installed on radiators farthest from the boiler and in the coldest rooms.  The small sizes are for radiators closer to the boiler and affecting the thermostat. Gorton Air Eliminators install at the end of basement mains to speed up air elimination from the mains

Install on radiators in room in which thermostat is located, and on radiators that effect the thermostat., 1/8" connection

Specs