Bottom section PVC front-locking BR 68x130mm OT 80mm in graphite black. Bottom section for the electrical installation duct system. Plastic parapet duct in accordance with DIN EN 50085-1 as a device installation duct with an upper section width of 80 or 120 mm for the installation of commercially available devices with or without additional panels. With bottom perforation (drill tolerance compensation on all sides) for direct wall mounting and additional rectangular perforation for tool-free fastening of the duct using clip technology on brackets. With an upper section width of 80 mm with front-locking, tool-free device installation for fastening devices and device installation boxes with quick fastening - additional C-profile as a device installation option as with all ducts with an upper section width of 120 mm. Couplings for simple and precise duct installation, partition walls and cable retention clips available as accessories. Note: Sound and fire protection measures must be carried out professionally.