Oatey Fire-Rated Washing Machine Outlet Boxes can be used in applications requiring supply valves and waste drain recessed into a fire-rated wall. Unit shall allow for the mounting of supply lines from top or bottom on the left or right side. Unit shall be available with single lever or 1/4 turn brass ball valves in configurations with and without water hammer arresters listed to ASSE 1010. Adjustable metal support bracket shall be installed on top and bottom of unit for support in stud wall. Drain size to be 2 in with 1/4 turn test cap.