Oatey 38531 WASH Machine Outlet Box, 2-Inch, White/Brass Patented, versatile design allows for right, left, or center drain and bottom or top mount valves 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