Maid O' Mist 74 Vent Valve

Vent Valve; Type Automatic, Float, Self-Closing; Inlet Size 1/4 Inch; Inlet Connection Female Threaded; Body Material Brass; Media Handled Hot Water; Application Concealed Radiator, Pipe Line, Tank; Size 4-3/8 Inch x 2-1/4 Inch; Finish Bright Brass; Mounting Type Vertical