Oatey 38542 2-Inch Pex Standard Pack 1/4 Turn Brass Hammer Ball Valves 2"" drain opening fits PVC or ABS Schedule 40 DWV pipe. Easy to remove knockout, Patent Pending Hammer Valves. Snap-on Faceplate Frame accommodates up to 1"" drywall. Box made of high impact polystyrene. Top or Bottom Valve Mount. 4 support brackets included for mounting. Box Dimensions: 8-3/4""W x 7-1/2""H x 3-5/8""D. Faceplate Dimensions: 11-3/4""W x 10-1/8""H. Patented, versatile design allows for right, left, or center drain and bottom or top mount valves Lock and Load valve mounting system for quick and easy positioning Single lever valve mounting hub locks into position in seconds Unique, easily installed and removed test cap that does not fall into drain Simplified and more efficient inventory