This lightweight ducting hose from Revotec offers the ultimate in flexibility. Manufactured from durable and temperature resistant material with bronze coated internal steel spring wire helix to prevent kinks. Engineered to keep air resistance to a minimum and recommended for brake ducts, hot and cold air ducts, air intakes and other low pressure or low suction applications.Black - Single layer Neoprene with a temperature range of -50 to 150 degrees CBrown - Single layer Silicone with a temperature range of -80 to 310 degrees CBrown (Dual layer) - Extremely durable and hard wearing Silicone with a temperature range of -80 to 310 degree C (available in selected sizes only)Clamping down ducting hose can be extremely difficult with a standard hose clamp. Revotec have engineered a ducting specific clip that will safely secure the ducting down. The Revotec ducting clip is available separately and in a wide range of diameters.Priced per metre and can be supplied in continuous lengths up to 4