Garvin 4-11/16 inch Square One Gang Adjustable Depth Device Rings are used to add one power outlet or low voltage device to existing box when finished wall thickness is unknown and may range from 3/4-in to 1-1/2 inch thick tile plaster or drywall.
Garvin AMR111B Features
Used with 4-11/16 in square boxes installed in ceilings walls and floors when finished surface depth is unknown
Get a perfect flush device installation to finished surfaces
Telescoping round inner ring adjusts to finished wall surface for a perfect fit every time
Adjusts from 3/4 in. to 1-1/2 in.
Raised - perfect for prefab applications
Garvin AMR111B 4-11/16" 1-Gang Adjustable Depth Device Box Ring