Efficient Insulation: Made with thick aluminum foil material and high-strength spiral steel wire, encased in a layer of fiberglass insulation, effectively reducing heat loss and improving thermal efficiency. High-Quality Insulation Cotton: Utilizing high-loft Owens Corning insulation cotton, it reduces heat conduction while absorbing noise generated during operation, enhancing user comfort. 3-Layer Tough: Constructed from durable aluminum plating and PET, reinforced with a fiberglass grid, achieving an R-6.0 flame resistance value, ensuring safety during operation and extending the product's lifespan. Flexible and Easy to Use: Can be bent, compressed, or cut as needed for installation without affecting the interior of the duct, reducing air resistance and improving installation adaptability. Variety of Applications: Primarily used for temperature control, dehumidification, and ventilation needs in various settings such as central air conditioning, fresh air systems, and greenhouse tents., Weight: 14.22 pounds, Manufacturer: VEVOR