Pressure Regulator, Series B, Body Material Cast Iron, Inlet Size 1 1/4 in, Outlet Size 1 1/4 in, Length 6 3/4 in, Height 8 3/4 in, Application Air, Water, Connection Type NPT, Pressure Adjustment Range 45 to 100 psi, Seal Material Buna-N, Max. Temp. 180 Degrees F, Pipe Size 1 1/4 in, Max. Pressure 200 psi