19.5 Cu. In. Round floor box rough-in kit with duplex style device - designed for use in wood floor construction and can be installed with multiple floor substrate materials, meets scrub-water exclusion test when used with FB-4 covers, tamper resistant receptacle, simple exterior shape for easy cut-in application - Floor box 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 - Polycarbonate box, galvanized steel dust plate, nonmeatallic device with copper terminals and brass ground - Size: Box - Dia=3.936, Depth=3.433 Cover - Dia=5.75, Thickness=.237 - Mount with Metal wing brackets/nonmetal flange floor or ceiling compression