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AC Infinity

AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust

  • Based on 19,148 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Jan 9
Order within 6 hours and 38 minutes
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Style: 8 Feet


Size: 4 Inch


Features

  • Designed for ventilation applications including HVAC, dryer, grow rooms and tents.
  • Four-layer design makes it more durable and resistant to leaks, tears, and cuts.
  • Steel-wire spiral structure is flexible and easy-to-install in hard to reach places.
  • Constructed of aluminum and thermoplastic; tube can be shortened for various applications.
  • Ducting Size: 4 | Length: 8 feet | Includes two stainless steel 4" duct clamps

Brand: AC Infinity


Material: Aluminum, PVC


Color: White


Product Dimensions: 96"L x 4"W


Item Weight: 0.48 Kilograms


Outside Diameter: 4 Inches


Item Length: 8 Feet


UPC:


Manufacturer: AC Infinity


Specific Uses For Product: Hydroponic grow rooms and tents, exhausting bathrooms and attics, transporting heating and cooling, AV equipment rooms, closets, racks, and cabinets See more


Brand: ‎AC Infinity


Material: ‎Aluminum, PVC


Color: ‎White


Product Dimensions: ‎96"L x 4"W


Item Weight: ‎0.48 Kilograms


Outside Diameter: ‎4 Inches


Item Length: ‎8 Feet


UPC: ‎819137021020


Manufacturer: ‎AC Infinity


Specific Uses For Product: ‎Hydroponic grow rooms and tents, exhausting bathrooms and attics, transporting heating and cooling, AV equipment rooms, closets, racks, and cabinets


Global Trade Identification Number: ‎20


Part Number: ‎AI-DTA4-8


Item Weight: ‎1.06 pounds


Item model number: ‎AI-DTA4-8


Is Discontinued By Manufacturer: ‎No


Size: ‎4 Inch


Style: ‎8 Feet


Shape: ‎Round


Installation Method: ‎Ceiling Mounted


Item Package Quantity: ‎1


Included Components: ‎Two stainless steel duct clamps


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: August 27, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 9

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.

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Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Durable and Reliable 8-Inch Aluminum Ducting – Perfect for Ventilation and Exhaust
Style: 8 Feet Size: 8 Inch
The AC Infinity Flexible 8-Inch Aluminum Ducting (8 feet long) is a fantastic choice for anyone setting up or upgrading a ventilation system. I use mine with an AC Infinity inline fan, and the results have been excellent—it moves air efficiently while staying strong and secure. The four-layer protection (dual aluminum foil, PET, and steel wire spiral) makes this ducting not only flexible but also very durable. It doesn’t tear or kink easily like cheaper ducting, and the extra thickness helps keep it from collapsing under pressure. The flexibility makes it easy to route through tight corners, and installation was straightforward with the included clamps. ✅ Pros: Heavy-duty four-layer construction for long-lasting use Flexible design makes installation easy, even in tight spaces Works perfectly with inline fans, grow tents, hydroponics, and HVAC setups 8-foot length is versatile for most setups Comes with sturdy clamps for secure attachment ❌ Cons: A little stiffer than thinner ducting, but that’s the tradeoff for durability At 8 feet, you may need extensions for larger setups 💡 Tips: Use with an AC Infinity inline fan for maximum airflow efficiency. When cutting to size, make sure to trim cleanly and secure ends tightly with clamps to avoid air leaks. If using in a miner room or greenhouse, pair it with a soffit vent to direct air outside effectively. Avoid bending too sharply—keep smooth curves for better airflow. Bottom Line: This ducting is built to last and does its job extremely well. Whether you’re cooling a miner setup, venting a grow tent, or upgrading your HVAC system, the durability and flexibility make it worth the investment. ... show more
Reviewed in the United States on August 30, 2025 by Kenny Campbell
    • Great fit
Style: 8 Feet Size: 4 Inch
Easy to install and super sturdy so far. Way cheaper and easier to use than a ridged aluminum piping.
Reviewed in the United States on December 20, 2025 by Waiman
    • Durable, Flexible, and Works Perfectly!
Style: 8 Feet Size: 6 Inch
This AC Infinity 6-inch aluminum ducting is excellent quality! The four layer construction feels very sturdy and heavy-duty, yet it’s flexible enough to easily route through tight spaces. Installation was straightforward, and it works perfectly for both ventilation and exhaust applications. It’s long enough at 8 feet to handle most setups, and it holds up well without kinking or collapsing. Highly recommend for anyone looking for durable and reliable ducting for HVAC, grow rooms, or other airflow needs. ... show more
Reviewed in the United States on September 30, 2025 by ThatNewGuy
    • Good flex pipe
Style: 8 Feet Size: 10 Inch
Works as it should
Reviewed in the United States on November 29, 2025 by Richard Harbers
    • High quality
Style: 8 Feet Size: 8 Inch
These ducts are really high quality. They are the size theu claim to be. They are light weight. They expand to the proper size easily, and almost "click" back to smaller lengths instead of becoming a mess. They do have a little thing of tape on each end, that is kind of hard to get off, not that hard, but ya might groan a few times. With the included clamps they form great seals and are easy too attach. They take a beating too... worth the extra few bucks in my mind. I have horror stories about lesser flexible ducts. ... show more
Reviewed in the United States on November 8, 2025 by C.K.
    • Reliable Aluminum Duct
Style: 8 Feet Size: 6 Inch
Review Image by Segundo Segundo
It is sturdy and feels durable, giving confidence in its long-term use. Installation was simple, and it fits well with different ventilation setups. The airflow is adequate and performs its function without any issues. Additionally, it is easy to handle and keep clean.
Reviewed in the United States on September 20, 2025 by Segundo Segundo
    • Good quality item.
Style: 8 Feet Size: 4 Inch
Good quality item. Works exactly as it should. Would definitely buy more of this brand. I have an inline blower from them and that is also top quality.
Reviewed in the United States on December 11, 2025 by Kieran H. Ecker
    • Excellent duct for a dehumidifier.
Style: 8 Feet Size: 8 Inch
We run a foundation repair company and install a couple of hundred crawl space and basement drainage systems a year. We install scores of dehumidifiers. These 8' and 25' ducts are the best I have found to use with a dehumidifier. We highly recommend them.
Reviewed in the United States on December 19, 2025 by Healthy Home Foundation Repair

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