VIVOSUN4 Inch 25 Feet Flex Air Aluminum Duct for Ventilation, 2 Clamps Included, Long Heavy-Duty Multi-Layer Dryer Hose Vent Kit, Duct Fan Systems

I got two of these air ducts for my basement ventilation. My house has no Radon mitigation system, so I want to use a simple way to ventilate the basement. A window fan blows air out at one basement window, and fresh air comes in from another window. But the windows are too close to each other, so I have to use air ducts to let the fresh air to travel about 40ft to the other side of the basement so that the whole space is sufficiently ventilated. I connected two ducts to reach the length. I used hanging straps to hang the duct to the ceiling wood so it's out of way. Now the radon detector shows the level fluctuates between 4 to 9 in the basement. Before ventilation, it reached 20 to 50! The living spaces upstairs has radon levels ranging from 0.2 to 1.0 most times, well below the 4.0 threshold.The side effects of the diy ventilation method is the lower basement temperature in winter (around 50 F) and higher humidity in summer (I run a dehumidifier in basement anyway, only that the electricity use is up).Back to the ducts, they are flexible, easy to expand and shrink in length, easy to install, the aluminum foil is thick. The price is reasonable.

Works perfectly. Price was right. No complaints.

In my recent DIY ventures, the VIVOSUN 6 Inch 8 Feet Non-insulated Flex Air Aluminum Ducting for Ventilation has proven to be an essential component.What impressed me most about this ducting is its flexibility and durability. It's remarkably easy to maneuver into tight spaces, making it ideal for routing air from my ventilation system without any kinks or bends that could impede airflow. The non-insulated design is perfect for my needs, ensuring efficient airflow without unnecessary bulk.The inclusion of two stainless steel clamps was a thoughtful addition. They provide a secure and tight fit, ensuring that the ducting stays in place once installed. This feature not only enhances safety but also reduces the risk of air leaks, which can compromise the effectiveness of the ventilation system.One aspect to note is that the ducting material is quite thin, which may require careful handling during installation to avoid tears or punctures. However, with proper care, this hasn't posed a significant issue in my projects.Overall, the VIVOSUN 6 Inch 8 Feet Non-insulated Flex Air Aluminum Ducting for Ventilation is an excellent choice for DIY enthusiasts looking to improve airflow in their homes. Its flexibility, durability, and secure clamping mechanism make it a reliable solution for various ventilation applications.

This product is incredible! It functions perfectly and exceeds expectations. Highly recommended!

This product is an excellent choice for bathroom fan venting. After remodeling my bathroom, I can confidently say it performed exceptionally well! It's not only easy to use, but also budget-friendly. Highly recommended!

I used this for a vent fan in my shed. It was just the right size (diameter and length) for my intended use. It was just the right thickness and only time will tell if it is durable as it in installed in the attic of my shed.

I used this in conjunction with a sleeve and was able to repair my ducting like it was brand new. I’m very pleased with how easy and clean it was to put the rings on and the connectors. I would recommend this to anyone trying to repair their duct for mishaps and only need up to 5 feet instead of buying a whole new duct.

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