Garvin Industries 4 Square Old Work Cut-In Box

This 4in Square, 2-1/8in Deep inCut-Inin Wall Box allows installers to add devices, speakers, strobes, alarms, and many other components to existing hollow walls. The 4in Square inhole mounting provisionin fits many common electrical and electronic devices and rings. 1/2in & 3/4in conduit knockouts on the sides and back of the box allows bi-directional conduit and cable attachment. Medium 2-1/8in depth is great for most wall thicknesses constructed of standard framing materials. This old work box comes complete with attached plaster ears to catch the wall surface when used with snap-on old work clips that secure it tightly to drywall, tile, or plaster. These boxes are painted red to distinguish them as fire alarm circuits.