Maid O' Mist 75 Vent Valve

Vent Valve; Type Automatic, Float, Self-Closing; Inlet Size 1/2 Inch x 3/4 Inch; Inlet Connection Female Threaded x Male Threaded; Body Material Brass; Media Handled Hot Water; Application Concealed Radiator, Pipe Line, Tank; Size 4-3/4 Inch x 2-1/4 Inch; Finish Bright Brass