Round device insert for 9 standard (EK design) or 12 Modul 45 installation devices in 3 GB3 device casings, for universal use in duct systems, raised and hollow floors. Installation opening = 305 mm. Carpet protection frame, hinged cover and cord outlet made of polyamide. For floor covering insert thickness 5 mm. Alternatively adjustable to 3, 10 or 12 mm.
