Evolution Series EFB6, EFB8, EFT10 Floor Box Tile Shim
Used for floor coverings greater than 3/16'' (4.7mm). This tile shim allows the finished cover assembly to be flush with the finished floor. Includes one (1) 1/16'' (1.6mm), one (1) 1/8'' (3.2mm) and one 1/4'' (6.4mm) tile shim for 9/16'' (14.3mm) of upward adjustment.