Mounts vertically or horizontally. 60 Hz TEFC motor turns at 3450 RPM. .097 displacement pump and 1.5 gallon reservoir. Relief valve set at 2000 PSI. 1.25 GPM with check valve to prevent back flow. HP: 1, Volts: 115, 208, 230 AC, Max. RPM: 3,450, Phase: 1, Outlet Port (in.): 9/16-18 SAE, Reservoir Capacity: 1 1/2 gal., Flow (GPM): 1 1/4, Inlet Port (in.): 9/16-18 SAE