VIVOSUN 4 Inch 8 Feet Black Non-Insulated Flex Air Aluminum Ducting for HVAC Ventilation w/Two 4 Inch Stainless Steel Clamps — Open-Box, 8% Off

Perfect Connector: This ducting is primarily used with duct fan systems in various air circulation and ventilation projects to move and transport air, increasing airflow and easing connections between spaces; It's compatible with front-mounted and top-loading dryers/fans. Duct connection specifications note: match duct size to fan diameter for a tight, leak-proof fit – e.g., pair a 4'' fan with 4'' ducting

Premium Material: Made of aluminum, it is resistant to high-temperature and corrosion-resistant, being able to serve for a long time; The stainless steel clamps are rustproof, corrosion-resistant, and heavy-duty, ensuring a seamless junction

Multi-Layer Structure: Reinforced multi-layer design with built-in steel wire for enhanced durability and leak resistance; The internal aluminum foil layer provides fire/flame retardancy; PVC outer layer offers flexibility and corrosion resistance; The thermoplastic PET middle layer prevents cuts/tears and leakage

Flexible and Convenient: Thanks to the built-in steel wire, the length and shape of this ducting is flexible to change for fitting exhaust fan blower or inline fan; Being portable and lightweight, it can be installed at any place; Comes with 2 duct clamps in the same duct opening size for easy setup and securer connection

Abundant Applications: Suitable for both commercial and residential air duct solutions; Widely used in HVAC applications, bathroom venting, stove exhaust, dryer ventilation, kitchen cooking exhaust, planting room, or warmhouse air circulation, etc.; Also used to cool AV equipment rooms, closets, racks, and cabinets