Ideal for use in factory maintenance, agricultural applications, fleet service or for use on trucks connected to vehicle air brake compressors Air Operating Range 40–120 PSI (3-8 BAR) Pressure Ratio 40:1 Air Compressor Volume1 cfm / 0.026 cubic metre and above Air Inlet Threaded1/4" (F) Each gun supplied with a male quick coupler fitting Continuous grease discharge with the trigger pressedComplete with 6” (150 mm) steel extension or 12” (300 mm) flexible hose & professional 4 jaw coupler