617691 GREASE LUBRICATOR AIR POWERED, FOR 420GRM CARTRIDGE

Works with compressed air for easy speed greasing by just pulling the trigger. Pressure is maintained constantly and the lubrication level is consistent. Works with a replaceable grease cartridge which is easy to attach and keeps dust and dirt out of the grease. Grease level inside the cartridge can be checked at a glance so the grease will not run out unexpectedly.