The 571MK-F flush mount kits kit allows for the 571C or 571D communication stations to be mounted flush to a wall. The 571MK-F includes a flush mount back box. The kit allows for both horizontal  and vertical configurations of the 571C or 571D. Conduit openings  are provided on each side of the box for a 3/4" conduit. Note: The 571C/571D must be purchased separately. The 571MK-F provides four mounting ears for retrofit installation, supporting walls up to 38.1mm (1.5in) thick. For new construction, the 571MK-F-BR pre-construction bracket must be purchased separately.