Arlington Industries’ FLBC6230MBLR cover kit is designed for installing receptacles flush in concrete floor boxes. It fits FLBC4500 and FLBC4502 boxes and other manufacturers’ 4 1 / 2 -in. concrete boxes. It has flip lids and includes a 6-in. brass cover, gaskets, receptacle and a leveling ring.

Arlington Industries’ recessed in box cover kit installs into Arlington’s FLBC4500 nonmetallic concrete box. It is recessed and installs into the can, reducing trip hazards caused by plugs sticking out of the box. It also allows for power and low-voltage in the same box. It is available with metal and plastic flanges.