Alemite 500-E Grease Gun, Develops up to 10,000 psi, Delivery 1 oz./21 Strokes, 16 oz. Bulk or 14 oz. Cartridge, with 18" Hose & Coupler, 3-Way Loading Develops pressure up to 10,000 psi Lever mechanism for standard volume output Delivers 1 oz. of grease per 21 strokes 16 oz. cylinder capacity Die cast aluminum head for lightweight durability, and vinyl cover on lever for gripping