Allows for right, left, or center drain and bottom or top mount valves. 2" drain opening fits PVC or ABS Schedule 40 DWV pipe. 1/4 turn brass ball valves 1/2" with PEX connection. Includes 4 mounting brackets. Snap-on faceplate frame accommodates up to 1" drywall with dimension 11-3/4" W x 10-1/8" H.