Twinwall Duct Coils allow a robust alternative to conventional cable protection methods. The outer wall is corrugated and the inner wall is smooth. It is a combination of the corrugations, and the heat welding of the two walls that give Twinwall duct coil its excellent structural strength. 

Our range of Twinwall Duct Coil is below and see our supply of Black (use of electricity cables), Blue (water protection), Yellow (gas protection), Green (CCTV/Fibre Optics), Purple (motorway communications underground) and Orange (traffic signal services).