Now there's no need to worry about top heavy tanks or spills from the container. This 3-1/2 gallon compact self-contained unit has a self-priming diaphragm pump and an easy pour spout for emptying. Flat tank design allows the unit to be stowed easily. This 12-volt oil changer comes with dipstick suction tube, battery clamp leads, and on-off switch for easier operation. White.