Grease Meter For Use With Air Operated Grease Pumps Used in Place of Grease Control Handle Compatible Chemicals Antifreeze Biodiesel Diesel Fluids Oil Includes (4) Jaw Grease Couplers Batteries Digital Grease Meter Extension Z-Swivel Max Operating Pressure 7 800 psi Inlet Type FNPT Inlet Size 1/4 in Nozzle Operation Automatic Metered Yes For Media Type Antifreeze Biodiesel Diesel Fluids Grease Oil