Oatey o38545 Washing Machine Outlet Box

Product Description

The OATEY o38545 is a QUADTRO washing machine outlet box designed to recess supply valves and waste drain connections into the wall for a clean, code-compliant installation. Built from polystyrene, the box accepts a single lever copper hammer valve that includes a water hammer arrestor — a shock-absorbing device required on supply lines serving quick-closing valves. The 2-inch drain connection handles standard laundry drain requirements, and an easy-to-remove knockout simplifies field cutouts. Licensed plumbers install this unit during rough-in or remodel work in both residential and commercial settings.

The o38545 is suited for commercial and residential laundry installations where supply valves and drain lines must be recessed into wall cavities. The integrated water hammer arrestor addresses the pressure spikes generated when a washing machine valve closes rapidly, protecting piping and fittings upstream. The single lever valve design allows quick shutoff without tools, making future service faster. The removable knockout gives installers flexibility when routing drain piping through the box during rough-in.

Key Features

• Recessed wall box design keeps supply valves and waste drain connections flush with the wall surface
• Single lever copper hammer valve for fast, tool-free shutoff
• Integrated water hammer arrestor absorbs pressure shock on quick-closing valve supply lines
• 2-inch drain connection matches standard laundry drain pipe sizing
• Easy-to-remove knockout for flexible drain routing during rough-in
• Polystyrene construction suitable for both residential and commercial applications

Compatibility

Designed as an OEM-style replacement and new-construction fitting for residential and commercial washing machine rough-in installations requiring recessed supply valve and waste drain access.

Installation Notes

Installation should be performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and applicable local codes. Shut off the main water supply and depressurize the supply lines before beginning work. Secure the box to wall framing before connecting supply and drain piping, and verify that the drain connection slopes properly to the sanitary system. Do not overtighten fittings on the polystyrene body.

Technical Specifications

• Product Type: Washing Machine Outlet Box
• Material: Polystyrene
• Valve Type: Single Lever
• Drain Connection: 2 inches

Standard Information

• Brand: OATEY
• Manufacturer Part Number: o38545