Buy a rustproofing gun from Redwater NAPA and get an engine cleaning gun free. This rustproofing gun is designed to spray lightweight materials to protect your vehicle from rust. It features two flexible wands, a brass quick-connect coupler, and a plug. All for only $134.99. When you purchase this rustproofing gun, you get an engine cleaning gun, which features 60” hose and a solution strainer for free. The engine cleaning gun has a working pressure of 40 to 100 psi. This is just one of the great deals you get at Redwater NAPA, so stop in to see us today!