Cable routing duct made of PVC LF 40x90mm stone grey. Electrical installation duct system cable routing duct made of plastic in accordance with DIN EN 50085-1 for cable laying. Duct bottom/top with partition wall installation option, snap-in, with pre-punched floor holes at 125 mm intervals, from size 40 x 60 mm with pre-assembled couplings for easy alignment during one-man assembly and from size 30 x 60 mm pre-assembled adjustable retaining clips.Note: Sound and fire protection measures must be carried out professionally.