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 Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust

AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust

Product ID: 57113912

Details

Brand
AC Infinity
Color
Black Silver
Item Length
300 Inches
Item Weight
0.01 Ounces
Manufacturer
AC Infinity
Material
Aluminum Steel

📏25 feet length for versatile coverage

🔄Flexible steel-wire spiral for easy install

🛡️4-layer heavy-duty protection

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VT19583

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Details

Brand
AC Infinity
Color
Black Silver
Item Length
300 Inches

Description

🌀 Elevate your airflow game with flexible strength and sleek durability!

TAILORED TO YOUR NEEDS - Easily cut and customize length for any HVAC, grow room, or exhaust setup.
COMPLETE INSTALLATION KIT - Includes two stainless steel 4-inch duct clamps for secure, hassle-free mounting.
FLEXIBILITY MEETS FUNCTION - Steel-wire spiral design bends effortlessly to fit tight, hard-to-reach spaces.
BUILT TO LAST DESIGNED TO PERFORM - Four-layer construction resists leaks, tears, and cuts for unmatched durability.
TRUSTED BY PROS LOVED BY MILLENNIALS - Top-rated with 4.7 stars and #2 rank in HVAC ducting—join the community optimizing airflow.

The AC Infinity Flexible 4-Inch Aluminum Ducting offers a robust 25-foot length with a heavy-duty four-layer design that ensures superior durability and leak resistance. Its flexible steel-wire spiral structure allows easy installation in tight spaces, while included stainless steel clamps provide secure mounting. Perfect for HVAC, grow rooms, and ventilation needs, this ducting combines professional-grade materials with user-friendly customization.

Specifications

ASIN	B071LHCFZ8
Best Sellers Rank	#1,586 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in HVAC Ducting
Brand	AC Infinity
Brand Name	AC Infinity
Color	Black, Silver
Customer Reviews	4.7 out of 5 stars 16,522 Reviews
Item Dimensions L x W	300"L x 4"W
Item Length	300 Inches
Item Weight	0.01 Ounces
Manufacturer	AC Infinity
Material	Aluminum , Stainless Steel
Material Type	Aluminum, Stainless Steel
Nominal Wall Thickness	Greater than single-layer thickness inches
Number of Flutes	1
Outside Diameter	4 Inches
Product Dimensions	300"L x 4"W
UPC	854759004952
Unit Count	25 Feet

Reviews

C**R

3.03.2026

S**N

9.03.2026

H**R

30.12.2025

D**N

24.03.2026

D**K

6.02.2026

G**I

23.03.2026

R**A

31.01.2026

N**N

13.12.2025

A**R

5.10.2020

A**E

9.04.2023

ぼ**う

21.08.2020

A**ー

2.08.2020

H**N

18.04.2026

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VT19583

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