Simplify washing machine installations with the Holdrite washing machine outlet box, specifically designed for residential use. This is only a fire-rated replacement box and does not include any of the valves that come in the original outlet box kit. This replacement washing machine outlet box is compatible with standard Holdrite washing machine outlet boxes. Made from durable ABS plastic material, these replacement outlet boxes can be mounted directly to studs, between studs with a Hyco bar, or attached to Holdrite brackets.