Air Safety Valve, Soft Seat, (M)NPT Inlet (In.) 1/2 in, (F)NPT Outlet (In.) 1 in, Preset Setting (PSI) 150 psi, 586 cfm Rated CFM @ Set Pressure, Max. Temp. (F) 250 Degrees F, Cast Brass Body Material, Lead Seal, Brass; Stainless Steel Spring, Brass...