Combi duct

RAM Combi-Duct Lightproof Ducting 10m A 4 layer multi-laminated construction with an encapsulating high tensile steel wire helix that ensures strength and durability. The black PVC outer is totally plant safe and a strong vapour/light barrier ensuring extra air tightness over standard alloy ducting while still being very flexible. Due to the 4 layers (when fully extended), the ducting folds it sha…