Garvin AMR3 4" Square 3-Gang Telescoping Depth Device Ring, 1/2" to 1-1/2" Raised Depth, Steel

Adjustable 3/4 in to 1-1/2 in raised for use with mating three gang boxes. These covers are used in ceilings walls and floors when finished surface depth is unknown or in question. They allow a perfect flush installation to finished surfaces ensuring that devices are securely fastened and well grounded to rings. Their telescoping three gang inner ring adjusts to finished wall surface for a perfect fit every time!