High power one shot air grease gun Designed with grease cylinder on top for optimal balance For use in factory maintenance, farm, fleet service or for use from vehicle air brake compressors Air Operating Range 40–120 PSI (3-8 BAR) Pressure Ratio 50:1 Air Compressor Volume 1 cfm 0.026 cubic metre and above For use with 14 oz (400 gms) grease cartridge or 500 cc bulk Complete with 6" (150 mm) steel extension or 9” (225 mm) high pressure flexible hose & professional 4 jaw coupler