This cannon is a new-and-improved design that features stainless steel inside and out. . . a stainless manifold with stainless internals, even the barrel was upgraded from nylon composite to full stainless billet. We also developed swappable jets to increase foam output in applications using a lower-psi pressure washer. Driven by an electric or gas-powered pressure washer, the cannons nozzle adjusts to produce a wide spray pattern of up to 40° for efficient coverage or a narrow 0° stream for long-range dispensing on car roofs, trucks, and RVs. Our exclusive Auto-Mix feature is a serious innovation. It saves tons of time because you dont have to remove the reservoir and mix the product by hand. . . Its a "no measuring, no mess, and no math" proposition, just screw in the bottle of concentrate and the metering tip provides the proper ratio. Built to last, our cannon is made with stainless steel internals that resist chemical-induced corrosion that can cause problems with standard brass manifold designs. Cannon includes Stainless Steel Quick Disconnect Coupler (may not be compatible with all pressure washer make and models) and a 1. 1mm primary jet. We also offer extra metering tips and reservoirs for your convenience.