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The OATEY 38957 is a washing machine outlet box designed for residential laundry installations. It provides a single-point rough-in solution housing two 1/4-turn MIP valves and a right-hand offset drain connection. The box is constructed from high-impact polystyrene and offers 3.65 cubic feet of box volume. The integrated valves allow a plumber to control hot and cold water supply lines from a single, accessible enclosure. Four support brackets are included for secure wall framing attachment. A water hammer arrestor is built in and meets ASSE 1010 standards, protecting supply lines from pressure surges common during washer valve cycling.
This outlet box is used in residential laundry rooms where a recessed wall box is required for a washing machine hookup. The 1/2-inch IPS connections align with standard residential water supply piping. The right-hand offset drain configuration suits installations where the drain line exits to the right side of the rough-in opening. Licensed plumbers typically install this unit during new construction or remodel framing before drywall is applied.
Designed as an OEM-style replacement or new-installation fitting for residential washing machine rough-in applications using 1/2-inch IPS water supply connections and standard 2-inch pipe drain connections.
Installation should be performed by a licensed plumber in accordance with local plumbing codes and UPC requirements. Shut off the main water supply before making any connections to existing supply lines. The box should be secured to wall studs or blocking using the included support brackets before drywall installation. Do not overtighten MIP fittings on the valve inlets, as the polystyrene body can crack under excessive torque.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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