Lucas Two-Way Operating Aluminum Grease Gun One hand pistol operation working pressure 3,600 PSI, max pressure 8,000 PSI. Two hand Lever operation working pressure 4,500 PSI, maximum pressure 10,000 PSI. Lightweight rust free anodized aluminum barrel and aluminum die-cast head Uses standard 14 ounce cartridge Ideal applications for Automotive, Agricultural, Marine, Trailers and Industrial