Fire Rated Washing Machine Outlet Boxes FR-12 Outlet Boxes with Quarter Turn ValvesFR-12 Outlet Boxes with Single Lever ValveFR-12 Outlet Boxes with Quarter Turn Valves with Hammer ArrestersFR-12 Outlet Boxes with Single Lever Valve with Hammer ArrestersFR-12 Outlet Boxes with Domestic ValvesMetal FR-12 Fire Rated Washing Machine Outlet Box