Two-gang powder-coated aluminum combination carpet and tile flange, 6'' x 9'' (152.4mm x 228.6mm). Accepts Ortronics MAB6TJ TracJack and MAB3S2 Series II adapters and Wiremold CM Series Open System inserts, sold separately. NOTE: UL Listed for tile, terrazzo, and carpet floors. Brass covers and flanges are not interchangeable with aluminum or nonmetallic covers and flanges. Nonmetallic covers are interchangeable with aluminum flanges.