Is the material safe? Does it emit any harmful chemicals when heated? Thanks

Not that I have noticed but I would not allow over 120f degree air to travel through this. Use all metal flex or rigid metal for that application.

whats the best way to connect this to my existing 5" vent hose?

Get a sheet metal reducer 5” to 4” 30 gauge sheet metal reducer, some large zip ties or duct clamps and maybe some venture tape to make a better seal. I suggest staying the same size or increasing though to 6” depending on lengths of ductwork.

When used with portable ac does the duct give off heat or is it insulated enough to stay cool?

It can give off some heat. You can go to any hvac supplier and get insulated flexible duct of basically any size. R-4, R-6 and R-8 insulation factors I believe.

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

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Hon&Guan 3 inch 16 FT Long Air Ducting, Heavy-Duty Three-Layer Protection Dryer Vent Hose for Heating Cooling Ventilation and Exhaust, Grey

Hon&Guan 3 inch 16 FT Long Air Ducting, Heavy-Duty Three-Layer Protection Dryer Vent Hose for Heating Cooling Ventilation and Exhaust, Grey

Product ID: 361105697

Details

Brand
Hon&Guan
Material
PVC Aluminum
Colour
Gray
Item weight
544.31 Grams
Item length
192 Inches

🔄360° rotatable flexibility

🔥Heat resistant -22℉ to 185℉

🛡️3-layer tear & puncture resistant

Description

🌬️ Elevate your airflow game with the duct that bends, resists, and lasts!

READY OUT OF THE BOX - Comes with 16 feet of ducting and 2 stainless steel clamps for quick, professional setup.
FLEXIBILITY THAT FITS ANYWHERE - 360° rotatable design with included clamps for seamless installation in tight, complex spaces.
VERSATILE VENTILATION SOLUTION - Ideal for grow rooms, dryers, portable ACs, and compatible with carbon filters and fans for optimized airflow.
BUILT TO LAST ENGINEERED TO PERFORM - Heavy-duty PVC, PET & aluminum foil layers ensure zero air leaks and ultimate durability.
HEAT RESISTANT FOR EXTREME CONDITIONS - Withstands temperatures from -22℉ to 185℉, perfect for hot, humid, or cold environments.

The Hon&Guan 3 inch x 16 ft Air Ducting is a heavy-duty, three-layer flexible ventilation hose made from PVC, PET, and aluminum foil. It offers exceptional tear and puncture resistance, 360° rotatable flexibility, and heat resistance from -22℉ to 185℉. Designed for HVAC, dryer vents, grow rooms, and more, it includes two stainless steel clamps for easy installation and ensures reliable, leak-free airflow in demanding environments.

Specifications

ASIN	B07QG1F4YZ
Brand	Hon&Guan
Brand Name	Hon&Guan
Color	Gray
Colour	Gray
Customer Reviews	4.4 out of 5 stars 138 Reviews
Included Components	2PCS Clamps, 3 inch duct hose
Item Length	192 Inches
Item Type Name	3 inch duct hose
Item Weight	544.31 Grams
Item length	192 Inches
Item weight	544.31 Grams
Manufacturer	Hon&Guan
Material	PVC Aluminum PET
Material Type	PVC Aluminum PET
Unit Count	1.0 Count

Reviews

R**Y

Works Perfectly for My Needs

8.10.2025

G**H

great diesel heater distribution hose

25.09.2023

A**R

Good

2.02.2024

R**3

Works well for my needs.

23.08.2019

G**E

Works with diesel heater

1.03.2024

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