*KeyFeatures *Efficient Insulation: Enhance Comfort with High-Loft Glass Fiber Insulation, Quieting Operation and Reducing Heat Transfer. *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: Built to Last with Durable Single-Sided Aluminum Foil and PET, Reinforced with Fiberglass Grid for Safety and Longevity, Achieving an R-4.2 Flame Resistance Rating. *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. ******************************************************************************************************* *Specifications Model: GC130 Diameter: 5.11 inch / 130 mm Tube Thickness (in extended state): 0.98 inches / 25 mm Length: 300 inches / 7620 mm Thermal Resistance Value: R-4.2 Net Weight (Including all Accessories): 7.49 lbs / 3.4 kg Product Dimensions (in extended state): 7.28 x 7.28 x 300 inch / 185 x 185 x 7620 mm ******************************************************************************************************* *Pakcage Content Flexible Duct x 1 Stainless Steel Clamps x 2