MultiBox™ Fire-Rated Washing Machine Outlet Box with Hammer Arresters

Product Description and Features

The Water-Tite MultiBox Fire-Rated Washing Machine Outlet Box is configured for simple and secure installation, making it a reliable choice for contractors and homeowners. This washing machine outlet box is ETL Certified and is fire rated for both one- and two-hour-rated walls. It has an intumescent pad attached to the back of the box that swells in the event of fire, acting as an insulator to prevent excessive heat from passing through the structure. This single-box unit has multiple valve knockouts and two drains: one for a standard 2-inch washing machine drain and an optional 1-inch drain to pipe the box to the DWV (drain, waste, and vent) system. The water valves come pre-installed and are durable forged brass with an anti-rotational design. They feature integrated hammer arresters that absorb sudden pressure changes to reduce stress on the plumbing system, providing continuous and maintenance-free protection against water hammer. This one-piece washing machine outlet box has integrated mounting flanges and can be installed more quickly than separate drain and valve boxes. It comes with a faceplate (6-1/2 inches wide by 6-7/8 inches high) that is interchangeable with all MultiBox outlet boxes and is able to accommodate up to two sheets of 5/8-inch drywall. The box has top and bottom stabilizer-bar slots and nail slots for optional extra support. Choose from a standard pack with an attached faceplate or a contractor pack with an unattached faceplate.

• For top mount water supply
• Mounting flanges - no clips to lose or hassle with
• Top and bottom stabilizer bar slots
• Nail slots
• Nine valve knock-outs
• Two drain knock-outs: 2" in standard washing machine drain, optional 1" to pipe valve box to DWV system
• Integrated drain knock outs will not fall down the drain after DWV test
• Anti-rotational valve design
• Faceplates fit any box configuration, including fire-rated
• All faceplates fit up to two sheets of 5/8" drywall
• Standard faceplate includes cable tie bosses to secure drain hose
• ETL Certified
• California Residents: WARNING – www.P65warnings.ca.gov

• MultiBox Brochure
• Specification Sheet
• Instructions
• MultiBox Fire Rated Design Specification Sheet
• REHAU EVERLOC+ Flyer