Features:-- Inlet - 1.50 Outlet - 1.50 Flow (GPM) - 36 Description:-- Waukesha S/Steel Lobe Pump. Max RPM 520, .070gal per rev. Nominal flow 36gpm. Max pressure 100psi. 1.1/2 x 1 1/2 inlet /outlet. Currently bare shaft, we can fit up a geared motor if required.