Complete your washing machine installation with this Oatey "Quadtro" Two-Valve Outlet Box. The box is made of high-impact polystyrene for long-lasting durability, and the snap-on faceplate frame accommodates up to 1-inch drywall. The two-inch drain opening fits PVC or ABS schedule 40 DWV pipes for versatility. Four support brackets are included for easy installation. Outlet box, 14" turn brass hammer ball valves, face plate cover, and test cap also included. One-year warranty.