Pressure Regulator, Series B, Body Material Cast Iron, Inlet Size 1 in, Outlet Size 1 in, Length 5 7/8 in, Height 7 1/2 in, Application Air, Water, Connection Type NPT, Pressure Adjustment Range 55 to 100 psi, Seal Material NBR, Max. Temp. 180 Degrees F, Max. Pressure 200 psi