Air Loaded Pressure Regulator, Series PRA, Body Material Polypropylene, Inlet Size 3 in, Outlet Size 3 in, Length 8 in, Height 15 5/8 in, Connection Type FNPT, Pressure Adjustment Range 5 to 125 psi, Seal Material Viton, Max. Temp. 180 Degrees F, Max. Pressure 150 psi