Efficient, clean way to transfer bulk oil and hydraulic fluids. 1/2 HP pumps fluids at 4 gallons per minute. Features self-priming, positive displacement design that mounts directly on barrel with supplied adaptor. Built-in bypass valve and on/off switch. 3/4in. inlet port; 1in. outlet port. Comes with 35in. suction pipe. 8in. L x 3/4in. D hose, nozzle and bung adaptor. AC models have built-in 30in., 3 prong power cord. U.S.A.