Steel parapet duct lower part for BRS 70x210mm upper part 2x80mm pure white. Duct lower part two-compartment, for the electrical installation duct system parapet duct made of sheet steel in accordance with DIN EN 50085-1 as a device installation duct. With fixed partition wall for system separation. With bottom perforation for direct wall mounting and additional rectangular perforation for tool-free fastening of the duct using clip technology on consoles. With front-locking, tool-free device installation for fastening devices, device installation boxes with quick fastening. Couplings for potential equalization as well as for simple and precise duct connection, partition walls and cable retention clips available as accessories. Note: Potential equalization, earthing, sound and fire protection measures must be carried out professionally.