It seems like the bad reviews are about size and come from march of 2020. Did you switch manufacturing or something? If so had it been resolved yet?

The problem was, it just said it was 4" in diameter, but did not point out that the 4" were outside diameter. The product itself is probably good. I needed an air vent hose with 4" inside diameter, so it can go over a pipe with 4". I wonder why somebody would be interested in the outside diameter for these hoses anyway. I ended up buying a non insulated hose at Home Depot, where I could take my own tape measure to see with my own eyes what I am buying.

Has anyone else noticed that none of these are actually 25ft in length?

I had to send mine back, because of the diameter was not what I needed. There was some confusion, I had thought it would fit on a 4" connection, but it did not. So, I bought something else at a local store, where I could physically measure the ID.

Can this be used as an hvac supply duct? (heating and ac)

If it can be used for a dryer vent, it CAN be used for HVAC , the dryer produces more heat that a home furnace.

Hi there, Thank you for reaching out to us! I'm sorry but we do not have these available in a white option. Kind regards, Kenny Ngo AC Infinity

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AC Infinity 4-Inch Aluminum Ducting, 25-Feet Long Four-Layer Protection

Product ID: 154535645

Details

Brand
AC Infinity
Colour
25 Feet
Item length
25 Feet
Item weight
0.01 Ounces
Material
Aluminum Steel
Maximum pressure
4 Bars

📏25 ft flexible length

🔄Steel-wire spiral for easy bending

🛠️4-layer heavy-duty durability

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Description

🌬️ Flex your airflow game with AC Infinity’s unstoppable ducting!

SECURE FIT NO GUESSWORK - Includes two stainless steel 4" duct clamps for a rock-solid, leak-proof connection every time.
LENGTH THAT WORKS FOR YOU - Generous 25-foot length easily cut to fit any HVAC, dryer, or grow room setup—customizable without compromise.
BOOST EFFICIENCY AIRFLOW - Optimized design improves ventilation performance, making your heating and cooling systems work smarter.
BUILT TO LAST DESIGNED TO FLEX - Heavy-duty four-layer aluminum construction resists leaks, tears, and cuts for unmatched durability.
EFFORTLESS INSTALLATION ANYWHERE - Steel-wire spiral core ensures maximum flexibility, perfect for tight or hard-to-reach spaces.

The AC Infinity Flexible 100mm Aluminum Ducting offers a robust, four-layer design combining aluminum and thermoplastic for superior durability and leak resistance. At 25 feet long and 4 inches in diameter, it’s engineered with a steel-wire spiral core for exceptional flexibility and easy installation in tight spaces. Ideal for HVAC, dryers, grow rooms, and ventilation, it includes stainless steel clamps for secure fitting, ensuring enhanced airflow efficiency and long-lasting performance.

Specifications

ASIN	B071LHCFZ8
Best Sellers Rank	6,936 in DIY & Tools ( See Top 100 in DIY & Tools ) 10 in Ducting
Brand	AC Infinity
Colour	25 Feet
Country of Origin	China
Customer Reviews	4.6 4.6 out of 5 stars (33,968)
Item Dimensions L x W	7.62L x 0.1W metres
Item Length	25 Feet
Item Weight	0.01 Ounces
Manufacturer	AC Infinity
Material	Aluminum Stainless Steel
Maximum Pressure	4 Bars
Nominal Wall Thickness	Greater than single-layer thickness inches
Number of Flutes	1
Outside Diameter	4 Inches
UPC	854759004952
Unit Count	1.0 count

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