Close-Coupled, High-Pressure Pump and Motor Units feature a compact drive design that eliminate the need for pulleys, belts and tighteners. Cat Pumps with Baldor motors make for a high-quality combination in a range of flows and pressures. Bell housings with flex shaft couplers mate the motor and pump shafts for simple, true alignment. Unloader/regulator valves are "not included" but are available in a range of options depending on your application. Units are shown with brass or stainless manifolds. (Motors are three phase but single phase available in some models). Stainless baseplates are available if needed.