FED-K7640 ALU skirting board duct 2 chamber 76x40x2500 white RAL9016 type FED-K7640. Skirting board duct system with installation duct profile with cover, corner pieces, 90° angle pieces and end pieces in five sizes. The two smallest sizes (5630 and 7640) have two compartments, 10134 has three and the two larger sizes (12334 and 16155) have four compartments. The range also includes a connector and a cable tie holder. Material aluminum SS 4104, surface treatment natural anodized or powder coated in white.