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Washing Machine Outlet Box with Arrestor

HoldRite washing machine outlet boxes with built-in water hammer arrestors combine the functionality of a standard outlet box with the added benefit of preventing water hammer. Designed for residential laundry spaces, this outlet box ensures a smooth and quiet operation of the washing machine. The integrated water hammer arrestor acts as a shock absorber, effectively reducing the pressure surges that can damage pipes and fittings, while minimizing noise and vibrations caused by water hammer. Installation is a breeze with convenient features like easy mounting options and compatibility with various water supply lines. The box includes hot and cold supply valves with quarter-turn handles and threaded hose connections. It can be used with different pipe types such as copper, PEX, or CPVC, offering flexibility for your plumbing setup.

  • Compact design.
  • Paintable trim cover that Snaps into place - no adhesives or fasteners needed (will fit 1 or 2 layers of 1/2 in. or 5/8 in. sheetrock).  
  • Ships with debris cover and also includes optional hot/cold valve marking labels.
  • Attaches to 170/170-26 brackets (only in top position), hyco bar or directly to studs.
  • Valves can be installed in upright or inverted position.
  • Drain knockout on both sides of box. Each drain knockout also includes (1) 3/4 in. CTS and (1) 3/4 in. IPS knockout for use with condensate or T&P relief piping (utilizing box drain).
  • Optional funnel/diverter attachment for use when utilizing condensate/T&P to provide water wall effect to avoid splashing within the box.