Air-Operated Grease Gun Grease Gun Loading Method Bulk Cartridge Suction Grease Gun Handle Style Pistol Grip Nozzle Extension Type Rigid Pipe Strokes per oz 26 Max Operating Pressure 4 800 psi Air Inlet Size 1/4 in FNPT Air Input Range 40 to 120 psi Cartridge Capacity 14 1/2 oz Bulk Capacity 16 oz Pipe Length 6 in Tube Color Gray Tube Material Stainless Steel Grease Type Up to and Including NLGI Grade 2 Greases Tool Length 16 1/2 in Includes Bleeder Valve and Filler Nipple