Dark bronze plated brass round cover assembly for duplex floor box - Meets scrub-water exclusion test - Floor box assembly for residential wood floor cut-in application for use with nonmetallic sheathed cable. Used in areas of the home with large floor space openings where additional electric outlets are required by National Electrical Code to minimize long extension cord runs - Nickel plated brass cover and closed cell rubber gasket - Size: Dia=5.25", Thickness=.217" - Mount with Two screws