VEVOR Dryer Vent Hose, 127MM Insulated Flexible Duct 7.62M Long with 2 Duct Clamps, Heavy-Duty Three Layer Protection for HVAC Heating Cooling Ventilation and Exhaust, R-4.2 Flame Resistance Value

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., Weight: 7.5 Pounds, Manufacturer: VEVOR