• Features
Allows RFB4E box to be installed in polished concrete or terrazzo floors and keep the cover truly flush with the finished floor.
Allows RFB4E box to be installed in polished concrete or terrazzo floors and keep the cover truly flush with the finished floor
Nonmetallic ring for use on bare polished concrete and terrazzo floor applications
Only for use on RFB4E and RFB4E-OG Floor Boxes
Unassembled