High Temperature Silicone Ducting for heating and ventilation ductwork. Suitable for portable heaters, space heaters diesel and propane heaters. Temperature range -90c to + 300c, Diameters from120mm to 1000mm, any required length up to 15m. Main uses are for very warm air movement, refrigerated air movement, hot exhaust gas and fume extraction. Supplied with cuffs/metal bands or rings.