Garvin 52181-S 4" Square, 3-1/2" Extra Deep Junction Box, 1/2" & 3/4" Side Knockouts

3-1/2 in deep 4 in square junction boxes with (4) 1/2 in-3/4 in (2) 3/4 in and (2) 1 in side knockouts and (2) 1/2 in (2) 3/4 in bottom knockouts with a raised ground are installed in walls and ceilings where extra depth is needed for dimmers cameras speakers strobes signals and other electrical and electronic devices. Garvin' labor saving design eliminates the need to awkwardly install boxes and extension rings to accommodate deep devices.