Features Flexible Duct: The flexible ducting allows for free and easy bending and folding, reducing wind resistance and no leakage. Better Design: Equipped with aluminium foil and mute cotton, while the integrated PVC layer is waterproof and sturdy. Practical Use: Specially designed to ventilation, can be widely applied to HVAC, dryers, grow rooms, tents and so on. Reliable Work: Able to withstand pressure, the duct hose enables good sealing, which is flame retardant and durable. Easy to Install: A clamp is included as well, making the lightweight aluminum ducting with 1m length easy to install. Feature: 1. Flexible Duct: The flexible ducting allows for free and easy bending and folding, reducing wind resistance and no leakage. 2. Better Design: Equipped with aluminium foil and mute cotton, while the integrated PVC layer is waterproof and sturdy. 3. Practical Use: Specially designed to ventilation, can be widely applied to HVAC, dryers, grow rooms, tents and so on. 4. Reliable Work: Able to withstand pressure, the duct hose enables good sealing, which is flame retardant and durable. 5. Easy to Install: A clamp is included as well, making the lightweight aluminum ducting with 1m length easy to install. Specification: Item Type: Flexible Aluminium Ducting Material: PVC film, aluminium foil, silencing cotton, stainless steel. Length: Approx. 1m / 3.28ft, flexible. Application: For vents, pipe ports.  Package List: 1 x Flexible Aluminum Ducting 1 x Clamp Ring Package List 1 x Flexible Aluminum Ducting 1 x Clamp Ring