Working pressure 4,500 PSI, maximum pressure 10,000 PSI..Lightweight rust free anodized aluminum barrel and aluminum die-cast head.Includes 12 inch heavy duty triple reinforced flexible hose, 5-3/8 inch grease pipe and coupler.Heavy duty aluminum lever action.Uses standard 14 ounce cartridge.Ideal applications for Automotive, Agricultural, Marine, Trailers and Industrial.