Product details This premium semi-rigid aluminum flexible yet rigid patented duct is recommended over conventional semi-rigid and foil ducts. This duct requires no elbows as it can form tight 90 degree turns, requiring less space to work. The design creates airtight seams and prevents unraveling while handling. The duct is reinforced with bead wire helix to always maintain its round shape. This duct is suitable for all general-purpose venting applications including exhaust venting, bathroom fan venting, range hoods and more. It is installer friendly and can be uncompressed easily for installation. Unlike conventional semi-rigid ducts that take up large amounts of space, the duct has a compact compression that is 4 times smaller than the current duct in the market. This reduces space needed for transportation, warehouse, and shelf space in store. Airtight Design Fire-Resistant Class 0 Air Duct Improved Airflow Highly Flexible Installer Friendly Patented Uninsulated Operating Temperature Range: -86°F To 482°F Max. Velocity: 5,000 Fpm info: We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it. See our disclaimer Specifications Brand Lambro Manufacturer Part Number 302L Assembled Product Weight 0.92 lb Manufacturer Lambro More details Warranty Warranty length 90 Days or longer Warranty information 1-YEAR LIMITED