Jabsco hand pumps. Pump more liquid with less effort! They never need coaxing or priming and give full suction on the first stroke. Pumps can be used In any position. Uses include bilge pumping, oil draining, diesel fuel transfer, and many other liquid transfer applications. NOTE: Oil temperature should not exceed 140° F. Long life brass cylinders, high-quality oil resistant plungers, intake and discharge caps are used. Some models include hose(s) or adjustable mounting brackets. Available in two sizes with 1-3/4" and 1-1/4" diameter cylinders.