Removes investment from castings by using compressed air and water. The gun is chrome-plated zinc and brass. Complete with heavy-duty, squeeze-trigger air valve, rubber nozzle and hand grips for protection against hot water. Reduces cleaning time and eliminates costly cleaning equipment. Operates on 50-200 lbs. air pressure. Net Wt. 3 lbs.  We suggest purchasing our 4' Water Hose (2601806 - sold separately) which includes connections for your faucet and for the Hydro Air Wash Gun.