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.