The Oatey Quadtro Washing Machine Outlet Box 1/4" Turn Brass Valves Model: 38528 PEX is a white plastic outlet box designed for built-in/ integrated washing machine installations. It features 1/4" turn brass valves for easy connection and is compatible with all major brands of washing machines. With its durable construction and reliable performance, this outlet box from Oatey is a trusted accessory for your washing machine setup.