The Water-Tite Square Ice Maker Outlet Box features a special contoured design that offers quick and easy valve access. Its one-piece box-and-flange construction delivers ideal mounting stability, requiring no additional support framing. This outlet box includes one pre-installed lead-free brass valve that has an integrated hammer arrester, which absorbs sudden pressure changes to reduce stress on the plumbing system, providing continuous and maintenance-free protection against water hammer. The Water-Tite Square Ice Maker Outlet Box comes with a snap-on faceplate that measures 8-1/4 inches wide by 7-5/16 high and is able to accommodate up to 3/4-inch drywall. Dimensions: 8.25 Inch Frame Width, 7.3125 Inch Frame Height, 5.375 Inch Frame Opening Width, 4.5 Inch Frame Opening Height, 5.75 Inch Rough-in Box Width, 3.5 Inch Rough-in Box Depth, 4.875 Inch Rough-in Box Height, Supply Connection Size: 1/2 Inch, Supply Connection Type: CPVC