BIG AUTOPARTS Heavy Duty Pistol Grip Grease Gun 940798 4500 PSI Mini Grease Gun 14 OZ Grease Gun Included 12" flex hose and 5-1/2" Metal Extension with Coupler,Red Heavy duty pistol grip grease gun are aluminum anodized canister. Grease gun cartridge:Standard(14 oz),Maximum Pressure: 4500 P.S.I. ,Barrel: Aluminum. Grease gun fittings with a 12" flex hose and metal spout. Handle grease gun pole allows for upright operation and superior comfort. Manual grease gun rugged cast pump head for strength and durability.