Oatey 38470SP Fire-Rated Washing Machine Outlet Box, Copper Sweat Connections, Single Pack, 1/4 Turn Brass Ball Valves Warnock Hersey certified, for 1-hour and 2-hour fire-rated walls Box made of Bulk Molding Compound (BMC) with UL-classified intumescent pads,UL-classified insulation Brass  turn ball valves w/ copper sweat connections. 2"" drain fits PVC or ABS Sched. 40 DWV pipe. Adjustable metal mounting brackets, removable test cap. Flexible valve/drain arrangement capability Box Dimensions: 8-1/3""W x 5-1/2""H x 3-3/4""D. Faceplate Dimensions: 10-1/5"W x 7-2/5"H.