Arlington Industries FLB6230MB-1 Round Brass Cover Kit with 2-Flip Lids and Receptacle, 6-Inch, Brass, 1-Pack Floor box cover kit for new concrete Fits Arlington FLBC4500LR and other standard leveling rings 6-Inch brass cover with 2 Flip Lids Cover kit includes metal cover, gasket, gasket plate and receptacle Measures 5.7L x 5.7W x .12H