The GRACO GMAX II 7900 HD is a gas-powered airless sprayer designed for high-performance applications. It is constructed from materials such as acetal, aluminum, chrome plating, fluoroelastomer, leather, nylon, PTFE, polyurethane, stainless steel, tungsten carbide, UHMWPE, zinc-plated carbon steel, and nickel-plated carbon steel. Its intended use is for applying various coatings like skim coats, drywall mud, paints, primers, and heavy coatings.