VIVOSUN 4'' Flexible Aluminum Duct, 25 FT Long Heavy-Duty Multi-Layer Air Hose for HVAC Ventilation, Dryer Vent Hose for Grow Tents and Duct Fan Systems, 2 Clamps Included
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Availability:
In Stock.
Arrives
Monday, Jun 8
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Size: 4" x 25FT
Color: Black
Features
- Perfect Connector: This ducting is ideal for duct fan systems in air circulation and ventilation projects, helping move air efficiently and connect spaces with ease; Works with front- or top-loading dryers and 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
- Durable Build: Made from premium aluminum, this ducting handles extreme heat and resists corrosion for long-lasting use; The heavy-duty, rustproof steel clamps ensure a tight seal, preventing air leaks even under high pressure
- Multi-Layer Protection: Triple-layer construction for better durability and leak prevention; The flame-retardant aluminum foil (inner & outer layers) withstands high temperatures, while the PET thermoplastic middle layer resists cuts, tears, and leaks
- Flexible & Easy to Install: Built-in steel wire allows you to easily adjust the ducts length and shape to fit exhaust blowers or inline fans; Lightweight and portable for installation anywhere, and includes two same-size duct clamps for quick, secure setup
- Versatile Use: Perfect for both commercial and residential air duct needs; It can be used in HVAC systems, bathroom vents, stove and dryer exhausts, kitchen vents, grow rooms, and greenhouse air circulation; Also great for cooling AV rooms, closets, racks, and cabinets
Brand: VIVOSUN
Material: Aluminum, PET Thermoplastic Resists, Steel Wire
Color: Black
Product Dimensions: 4"W
Item Weight: 1.06 Kilograms
Outside Diameter: 4 Inches
Item Length: 25 Feet
Manufacturer: VIVOSUN
Number of Packs: 1
Unit Count: 1.0 Count
Item Dimensions L x W: 4"W
Item Weight: 1.06 Kilograms
Outside Diameter: 4 Inches
Item Length: 25 Feet
Material Type: Aluminum, PET Thermoplastic Resists, Steel Wire
Color: Black
Brand Name: VIVOSUN
Manufacturer: VIVOSUN
Unit Count: 1.0 Count
Included Components: 1 Ducting, 2 Clamps
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jun 8
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 4" x 8FT
Color: Black
This is a great product. We’ve used it on our industrial high‑temperature chambers, and it performs extremely well. Some of the hoses have been attached, removed, and reattached multiple times, and they still hold up without any issues. Consistent, dependable, and well‑made — it’s been a solid choice for our applications.
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Reviewed in the United States on May 22, 2026 by Jack Harris
Size: 4" x 8FT
Color: Black
This 4-inch aluminum foil ducting is extremely well made and far sturdier than I expected. The aluminum layering feels thick and reinforced, not cheap or flimsy, and it holds its shape perfectly once installed. I really like the black outer layer—it looks clean, professional, and helps with light control compared to standard silver ducting. The hose is flexible enough to route easily, yet strong enough that it doesn’t collapse or kink. The 8-foot length was perfect for my setup, and the included clamps fit snug and secure with no air leaks. Overall, this is a high-quality, heavy-duty vent hose that feels reliable and built to last. Great for HVAC, dryer vents, or exhaust fan systems. I would absolutely buy this again and recommend it to anyone looking for durable, trustworthy ducting.
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Reviewed in the United States on December 27, 2025 Reviewed in the United States on December 27, 2025 by Smith
Size: 4" x 25FT
Color: Black
Does the job.
Reviewed in the United States on April 28, 2026 by Jimmy Choy
Size: 4" x 25FT
Color: Black
Nice hose, used it for a vent system in basement
Reviewed in the United States on January 9, 2026 by ben
Size: 8" x 25FT
Color: Silver
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.
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Reviewed in the United States on February 28, 2025 by Andy
Size: 6" x 8FT
Color: Silver
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.
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Reviewed in the United States on July 16, 2024 by dragonlord
Size: 8" x 25FT
Color: Silver
Perfect for ventilation use, easy to install, quality materials
Reviewed in the United States on March 1, 2026 by Misty
Size: 6" x 8FT
Color: Black
My portable ac unit vent broke so I bought this one and it works create. See picture. Material seems to be of good quality. it has clams to clamp both ends. Looks great with black color. Very easy to install, just open up and pull everything comes out. Light weight and it woes as expected. Just tighten the clamps at both ends nicely.
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Reviewed in the United States on July 24, 2025 Reviewed in the United States on July 24, 2025 by ted