Waukesha Model 320 Positive Displacement Pump. Model: 320. Flow rate for new pump is 450 GPM at max RPM. Maximum pressure: 200 psi. Maximum speed: 600 rpm. Temperature range: -40F to 300F. 316 Stainless steel pump body, cover and shaft. Inlet/Outlet: 6 in. Approximate weight: 900 lbs. *Note: the rotors on this unit are worn. Overall dimensions: 2 ft. 6-3/16 in. L x 1 ft. 4 in. W x 1 ft. 10-3/8 in. H.(ACN259).