Valve, Regulating, Max. Flow GPM -, Flow Range (GPM) 0 to 12, Pressure Range (PSI) -, Max. Fluid Temp. (F) 190, Body Material Brass, Wetted Materials Brass, Stainless Steel, Buna-N, Steel, Inlet Port (In.) 3/8 F, Outlet Port (In.) 3/8 F, Bypass Port (In.) (2) 3/8 F, Max. Pressure (PSI) 4000, Height (In.) 6-3/4, -, Application Water and Nonflammable Liquids, -, Includes -, For Use With Plunger Pumps