Features: Crafted with flame retardant aluminum foil, this 60mm heating duct ensures strong performances in automotive environments while offering versatile compatibility with fuels air heaters and domestic heating systems. Featuring a shockproof design and expandable functionality (80 300cm stretchable length), the aluminum air intakes hose efficiently manages hot/cold airflows with shaking resistance for stable operate. Ideal for truck owners, enthusiasts, and homeowners seeking stable additional heating solution or ventilation upgrades for vehicles, workshops, or residential spaces. Perfectly adapts to fuels heater exhaust systems, garage heating setups, or mobile取暖configurations in cars, boats, and caravans where temperature control and fire safety are critical. Its reinforced aluminum foil construction maintains structural integrity during extreme temperature fluctuations, making this heating duct tube essential for maintaining optimal airflows in professional and thermal management projects. Specifications: Component : Aluminum foil Length: multiple for option Package Includes: 1xParking Heater Heating Duct note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.