Arlington's non-metallic recessed indoor InBox allows items such as furniture or televisions to be placed closer to the wall. Our InBox uses mounting wings to attach to the wall, so it is ideal for new or retrofit construction. This three gang 49.3 cubic inch InBox comes in black, is UL listed, and has a two hour fire rating. It comes with the recessed box, trim plate, wall plates, low voltage divider, and mounting/installation screws. With grounding clip.