Sioux Chief 696 series OxBox™ frame inserts shall be used where necessary in accessible plumbing applications. The frame insert shall limit access to the valves of an OxBox™ supply box while providing concealment of box opening. The frame insert shall allow for supply hoses to be fully installed in conjunction with the frame insert installation. The frame insert shall frictionally engage the OxBox™ frame. The frame insert shall be flush fit to the inside diameter of the OxBox™ frame.