Is this safe to vent a portable ac? ac's can get really hot.

I've never owned a portable AC. If there is a 4" circle shaped vent hole on the portable AC, it should tolerate the heat. Stationary ACs condensate water, there is no vent hole.

anyone use this for garage auto exhaust tube?

I am currently using this to exhaust the air in my wood shop

Is this suitable for marine use?

No paperwork came with it indicating whether it is USCG compliant (if there is such a requirement). If you want to use it as a duct for a bilge blower, I would say go ahead and use it. If you are concerned about fire retardancy, I suggest you contact the seller first.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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AC Infinity Flexible 4-Inch Aluminum Ducting, 8-Feet Long | Heavy-Duty 4-Layer Protection, Steel-Wire Spiral Structure, Flexible & Extendable, for Heating Cooling Ventilation & Exhaust

Product ID: 153233209

Details

Brand
AC Infinity
Color
Black Silver
Item Length
8 feet
Item Weight
0.48 kg
Manufacturer
AC Infinity
Material
Aluminum Steel

🌀Steel-wire spiral for kink-free flexibility

📏8 feet length fits versatile setups

🛠️4-layer heavy-duty durability

R2242

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌀 Elevate your airflow game with ducting that bends but never breaks!

PERFECT FIT EVERY TIME - 4-inch diameter snugly fits standard inline fans and vents, ensuring seamless installation.
READY FOR ANY ENVIRONMENT - Fire-resistant aluminum inner layer and tough thermoplastic outer shell handle HVAC, grow rooms, and dryer vents with ease.
ALL INCLUSIVE INSTALLATION - Comes with two stainless steel clamps for a secure, airtight seal—no extra parts needed.
FLEXIBILITY MEETS STRENGTH - Internal steel-wire spiral keeps ducting round and kink-free, even in tight, hard-to-reach spaces.
BUILT TO LAST DESIGNED TO PERFORM - Four-layer construction resists leaks, tears, and punctures for unmatched durability.

The AC Infinity Flexible 4-Inch Aluminum Ducting is an 8-foot long, four-layer heavy-duty ventilation tube featuring a steel-wire spiral core for superior flexibility and kink resistance. Constructed from fire-resistant aluminum and durable thermoplastic, it fits standard 4-inch HVAC and exhaust systems perfectly and includes two stainless steel clamps for secure installation. Ideal for professional-grade HVAC, grow rooms, and dryer vent applications.

Specifications

ASIN	B07WRDTX4C
Best Sellers Rank	#1,392 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in HVAC Ducting
Brand Name	AC Infinity
Color	Black, Silver
Customer Reviews	4.6 4.6 out of 5 stars (22,484)
Global Trade Identification Number	00819137021020
Item Dimensions L x W	96"L x 4"W
Item Length	8 feet
Item Weight	0.48 kg
Manufacturer	AC Infinity
Material Type	Aluminum, Stainless Steel
Outside Diameter	4 inches
UPC	819137021020
Unit Count	1 Count

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