Will the openings stretch overtop of a connector?

The diameter of the spring coil is 3 in, and the PVC and foil liner is a little bit inside of this. I was able to stretch the liner and get the connector inside, but it might be worth going with the next size up.

Is this UL approved for dryer venting?

No. I wouldn’t use this. Higher temperature applications require a different flex usually all aluminum for dryer venting because of the moisture levels being exhausted.

What is the inner diameter ? will this fit to 3" pvc ? i am trying to use it for the intake and outtake of tankless water heater

Inner diameter is 75mm, fit to 3"

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Hon&Guan 3" x 8FT Insulated Duct with Aluminum Foil, Flexible Dryer Vent Hose for HVAC Ventilation and Duct Fan Systems, 2 Clamps Include

Hon&Guan 3" x 8FT Insulated Duct with Aluminum Foil, Flexible Dryer Vent Hose for HVAC Ventilation and Duct Fan Systems, 2 Clamps Include

Product ID: 597032300

Details

Brand
Hon&Guan
Colour
Black
Material
Polyvinyl
Maximum pressure
5 Bars
Product dimensions
2.44L x 0.08W

🔇50% noise reduction

🖤lightproof black PVC layer

🛡️3-layer durable construction

€ 97.91

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖤 Silence, Strength & Style — The Ultimate 3" Flexible Duct for Pro-Level Ventilation

BUILT TO LAST - Triple-layer aluminum foil, PET, and steel wire helix resist rips and maintain shape.
LIGHTPROOF DESIGN - Black PVC layer blocks light leaks, perfect for grow rooms and sensitive spaces.
WHISPER QUIET VENTING - Cut fan noise by up to 50% for a peaceful environment.
FLEXIBLE FIT EASY INSTALL - Slides effortlessly onto 3" vents, fans, and filters—no hassle, no stress.
VERSATILE AIRFLOW SOLUTION - Ideal for HVAC, kitchens, bathrooms, grow tents, and more—airflow optimized everywhere.

The Hon&Guan 3" x 8FT Insulated Flexible Duct combines advanced 3-layer construction with a lightproof black PVC exterior and noise-silencing technology to deliver durable, quiet, and efficient airflow for HVAC, grow rooms, and household ventilation. Easy to install with included clamps, it fits standard 3" vents and withstands temperatures from -30℃ to 150℃, ensuring reliable performance in tight spaces.

Specifications

ASIN	B09WCY715H
ASIN	B09WCY715H
Best Sellers Rank	#4,796 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #139 in Registers, Grilles & Vents
Brand Name	Hon&Guan
Color	Black
Customer Reviews	4.3 4.3 out of 5 stars (7,997)
Customer reviews	4.3 4.3 out of 5 stars (7,997)
Date First Available	22 August 2023
Included Components	2PCS Clamps, 3*8FT Duct Hose
Item Dimensions L x W	2.44L x 0.08W Meters
Item Length	96 Inches
Item Type Name	Duct Hose
Item model number	Hon&Guan
Manufacturer	Hon&Guan
Manufacturer	Hon&Guan
Material Type	Polyvinyl Chloride (PVC)
Maximum Pressure	5 Bars
Nominal Wall Thickness	0.07
Outside Diameter	3 Inches
Product Dimensions	243.84 x 7.62 x 0.1 cm; 259 g
Unit Count	1.0 Count

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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€ 97.91

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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