Lumax LX-1123 Black Heavy Duty Deluxe Lever Grease Gun with 18" Flex Hose and Coupler Heavy duty cast head develops up to 10,000 PSI (690 bar) Three way loading by using cartridge, suction or grease pump Equipped with air bleeder valve to vent air pockets Short stroke valve maintains pressure and grease flow on less than full strokes Follower rod lock prevents accidental discharge