Designed to fit into the 16 on center (406mm) opening between studs in a standard 2x 4 (51mm x 102mm) wall. For both new work and old work applications. The box has two (2) 4-gang standard NEMA size openings and designed to accommodate power, communications, and A/V devices. Each box includes tunnel that allows wiring compartments on both sides of the box to be fed with a single conduit, reducing time and construction cost. The box has been designed with a cable pass through capability allowing multiple service points to be daisy chained together, eliminating the need for multiple conduit runs. Box includes temporary cover. Finished cover assembly (EHWBC) sold separately. Finish - Black