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

Product ID: 326765340

Details

Brand
AC Infinity
Colour
Black
Item weight
0.01 Ounces
Material
Aluminum Steel
Product dimensions
7.62L x 0.1W

📏25 ft length for versatile reach

🔄Flexible steel-wire spiral for easy install

🛡️4-layer heavy-duty leak & tear resistance

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VT25574

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Description

🌀 Elevate your airflow game with ducting that bends, lasts, and performs.

FLEXIBILITY MEETS FUNCTION - Steel-wire spiral core bends effortlessly, making installation in tight or awkward spaces a breeze.
COMPLETE KIT FOR INSTANT USE - Includes two stainless steel 4-inch duct clamps, so you’re ready to install right out of the box.
CUSTOM FIT FOR EVERY PROJECT - Easily cut to length, adapting seamlessly to your unique ventilation needs without compromising integrity.
BUILT TO LAST DESIGNED TO PERFORM - Four-layer construction ensures unmatched durability and leak resistance, perfect for demanding HVAC and grow room setups.
PREMIUM MATERIALS PREMIUM PROTECTION - Aluminum and thermoplastic layers provide fire resistance and guard against cuts and tears for long-term reliability.

The AC Infinity Flexible 4-Inch Aluminum Ducting is a 25-foot long, heavy-duty ventilation solution featuring a four-layer design for superior durability and leak resistance. Its flexible steel-wire spiral core allows easy installation in hard-to-reach areas, while the aluminum and thermoplastic construction ensures fire resistance and protection against cuts. Ideal for HVAC, grow rooms, and exhaust applications, it comes with two stainless steel clamps for secure fitting.

Specifications

ASIN	B071LHCFZ8
ASIN	B071LHCFZ8
Best Sellers Rank	#70,630 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #82 in Heating & Cooling Ducting Products
Brand Name	AC Infinity
Color	Black
Country of Publication	China
Country of origin	China
Customer Reviews	4.6 4.6 out of 5 stars (6,011)
Customer reviews	4.6 4.6 out of 5 stars (6,011)
Date First Available	20 February 2018
Is Discontinued By Manufacturer	No
Item Dimensions L x W	7.62L x 0.1W Meters
Item Length	300 Inches
Item Weight	0.01 Ounces
Item model number	Duct Wall-Mount Grille, White 4\"
Manufacturer	AC Infinity
Manufacturer	AC Infinity
Material Type	Aluminum Stainless Steel
Maximum Pressure	4 Bars
Nominal Wall Thickness	Greater than single-layer thickness inches
Number of Flutes	1
Outside Diameter	4 Inches
Product Dimensions	762 x 10.16 x 0.1 cm; 0.28 g
UPC	854759004952
Unit Count	1.0 Count

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