4 in. Square Adjustable Mud Ring, Single Device

Maintain code-compliant installations in hospitals, health care and multi-family applications. Great for use with ceramic tile.

• Adjustable from 1/2 in. to 1-3/8 in.
• Depth adjusted by 2 screws located on opposite sides
• Cubic Capacity: 4 cu in min/9.5 cu in max
• Adjustment screws are clearly visible and accessible even after device is installed
• All screws are inside of ring eliminating damaged from router
• For use with 2-1/8 in. deep boxes
• UL Listed