Front-locking aluminum parapet duct lower part for BRA 70x100mm, upper part 80mm, anodized. Duct lower part for the electrical installation duct system, parapet duct made of aluminum in accordance with DIN EN 50085-1 as a device installation duct. With bottom perforation for direct wall mounting and additional rectangular perforation for tool-free fastening of the duct using clip technology on brackets. With C-profile for fastening devices, device installation boxes with quick fastening and partition walls. With upper part width 80 mm, front-locking device installation for tool-free assembly is also possible. Couplings for potential equalization and 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.