PE3112 | ProEquip H/Duty Pistol Grip Grease Gun 6500psi 450GM | 6 500 PSI Develops 6 500 PSI (448 Bar) Carbon steel barrel and plunger. Air bleeder valve. Non-slip knurled barrel. Durable powder coated finish. Complete with 12 inch (300mm) high pressure flexible hose & professional 4-Jaw coupler with ball check. 3-Way Loading Cartridge Loading: 450gm Bulk Fill: 600CC Filler Pump Loading: 600CC