Automatic Drain Valve, Pipe Size 3/4 in NPT, Drain Outlet Dia. 1/2 in, Max. Pressure 450 psi, Operating Temp. Range 32 Degrees to 180 Degrees F, Drain Rate @ 100 PSI 1 gpm, Min. Pressure 40 psi, Bowl Capacity 28 oz, Body Material Aluminum, Fiberglass,...