Wolflube Air Operated Oil Pump 1:1 Ratio 9.24gal/min Delivery Capacity Air Operated Oil Pump Ratio 1:1 For Standard Drum up to 16 gal. Shank length 29.13in High Volume transfer pump is great for engine and gear oils, hydraulic fluid, transmission fluid, and antifreeze. Made for short distances up to 30ft. Different accessories allows different application possibilities. 52.80gal/min Air consumption/ 9.24gal/min Oil delivery capacity/ 1/4in Air Inlet