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 140ø F. Long life brass cylinders, high quality oil resistant plungers, intake and discharge caps are used. Sold each per display pack. Standard pack 12.Includes: 3′ of 1/2 hose, (2) 40 of 1/4 dipstick probes, neoprene intake adaptor and tube connector. Hose size ID: 1/2. 40 strokes per gallon. 1-1/4 diameter cylinder. Stoke length : 4-5/8. Overall length: 10-1/4.