The ultimate answer to hassle-free oil changing, this robust reversible pump comes ready for use. It's mounted on a 3.5 gallon (13 liter) container and supplied with cables, battery clips, and hoses. Operating the Porta-Quick in one direction empties the oil into the container and flipping the pump switch the other way empties the container into a suitable receptacle. It's self-priming up to 4' (1.2m). The Porta-Quick portable oil changer makes quick, clean and easy oil changes on-board any boat, because it uses the vessel's own power supply to operate the powerful oil reservoir flexible impeller pump.