Lincoln Super Heavy Duty Pistol Grip Grease Gun has a cast aluminum head and enclosed piston Assembly that work together to withstand the abuse of even the harshest environments. Includes a heavy duty 18" flex Hose with Coupler and a rigid 4" Tube. Filler Nipple also acts as a bleeder. The variable stroke delivers both high Pressure and high volume. Three way loading, cartridge, Suction or Bulk. Develops up to 7500 psi.