79WG Water Jet Cleaning Gun is ideal for cleaning farm and construction equipment, automobiles, trucks, or livestock.  Delivers turbulent, high velocity, air/water stream for the toughest cleaning jobs.  Equipped with air volume control and water shutoff valve, user can choose air/water for cleaning, water only for rinse, or air only for drying.  Features 18” stainless steel extension for spraying hard-to-reach locations.  Classic+ pistol-grip style handle provides maximum user comfort.