The Harmony Box Series of electrical device assemblies simplifies and speeds up high quality installations. An edge is provided as a guide for the rotary cutting tool to run along. The sandwich of the assembly on the wall substrate (e.g. drywall and tile) ensures quick and solid installation with flush mounting of the devices and cover plate - without fail! Several embodiments of the innovation are shown below.

speed nut snap together exploded 02-JH.jpg
speed nut snap together exploded 01-CROP.jpg