DN29 helical flexible tube, made in PVC with internal spiral in rigid PVC. It is insulating, waterproof and self-extinguishing, recommended for the protection of electrical conductors in buildings, tertiary sector, machinery and industry. IP65 protection index. The TFA flexible tube is installed with P and RGp fittings for connection to equipment or boxes. Grey color (RAL 7011). Operating temperature: -5 ° C to + 60 ° C. Line meter price (minimum order: Reel of 25 meters).