Oatey QUADTRO washing machine outlet boxes can be used in commercial or residential applications which require supply valves and waste drains recessed into the wall. The available water hammer arrestor option provides water pressure shock arrestors required for installationon supply lines to quick closing valves. Easy to remove knockout.Features: 2" drain opening fits PVC or ABS Schedule 40 DWV pipeEasy to remove knockout, Patent Pending Hammer ValvesSnap-on Faceplate Frame accommodates up to 1" drywallBox made of high impact polystyreneTop or Bottom Valve Mount4 support brackets included for mountingPatented, versatile design allows for right, left, or center drain and bottom or top mount valvesInLock and load-in valve mounting system for quick and easy positioningUnique, easily installed and removed test cap that does not fall into drainSpecifications: Box Material: PlasticConnection Type: Copper SweatDepth: 3-5/8"Height: 7-1/2"Width: 8-3/4"Box Dimensions: 8-3/4"W x 7-1/2"H x 3-5/8"DFaceplate Dimensions: 11-3/4"W x 10-1/8"HDrain Connection: 2"Material: PolystyreneType: Single Lever