The Oatey Washing Machine Outlet Box with Water Hammer Arresters is a universal electric-powered accessory designed for integrated installation with washing machines. Made of white plastic, this outlet box features perforations and a 1/4" turn water hammer arrester for efficient water usage. With a compact design and a weight of 6lbs, this Oatey product is suitable for all washing machine brands and is a necessary part for ensuring smooth operation and safety in your household.