---
product_id: 602375634
title: "Insulated Flexible Duct 4\" x 25 Ft R-6.0，Energy-Efficient 3-Layer HVAC Hose with 2 Clamps for HVAC & Exhaust Ductwork"
brand: "vevor"
price: "€ 166.07"
currency: EUR
in_stock: true
reviews_count: 13
category: "Vevor"
url: https://www.desertcart.hr/products/602375634-insulated-flexible-duct-4-x-25-ft-r-6-0
store_origin: HR
region: Croatia
---

# 4-inch Diameter Flexibility 3-Layer Durable Construction R-6.0 Thermal Resistance Insulated Flexible Duct 4" x 25 Ft R-6.0，Energy-Efficient 3-Layer HVAC Hose with 2 Clamps for HVAC & Exhaust Ductwork

**Brand:** vevor
**Price:** € 166.07
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay cool, save energy, and flex your HVAC game! 🌀

## Quick Answers

- **What is this?** Insulated Flexible Duct 4" x 25 Ft R-6.0，Energy-Efficient 3-Layer HVAC Hose with 2 Clamps for HVAC & Exhaust Ductwork by vevor
- **How much does it cost?** € 166.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/602375634-insulated-flexible-duct-4-x-25-ft-r-6-0)

## Best For

- vevor enthusiasts

## Why This Product

- Trusted vevor brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** 3-layer aluminum, PET film, and fiberglass grid ensure durability that stands up to tough installations.
- • **Noise-Reducing Comfort:** Fiberglass insulation dampens operational noise, creating a quieter, more serene environment.
- • **Versatile HVAC Solution:** Ideal for air conditioning, ventilation, and dehumidification in homes, offices, and greenhouses.
- • **Superior Thermal Efficiency:** R-6.0 insulation minimizes heat loss, slashing energy waste and utility bills.
- • **Flexible Installation Mastery:** Bend, cut, and compress with ease—perfect for complex HVAC layouts without airflow compromise.

## Overview

The VEVOR Insulated Flexible Duct is a 4-inch diameter, 25-foot long HVAC hose featuring R-6.0 thermal resistance through a robust 3-layer design of aluminum foil, fiberglass insulation, and PET film. Engineered for easy bending and cutting, it reduces heat loss and noise while ensuring durability for diverse ventilation and temperature control applications.

## Description

SpecificationsModel: OW108Diameter: 4.25 inch / 108 mmTube Thickness (in extended state): 0.98 inches / 25 mmLength: 300 inches / 7620 mmThermal Resistance Value: R-6.0Net Weight (Including all Accessories): 8.04lbs / 3.65 kgProduct Dimensions (in extended state): 6.49 x 6.49 x 300 inch / 165 x 165 x 7620 mmPackage ContentFlexible Duct x 1Stainless Steel Clamps x 2

Review: Works good - clamps aren't good though - This flex duct works good. Easy to install. The outer aluminum wrap is thin but doesn't rip easily. It's easy to cut using a razer. The insulation is decent. The clamps are no good though. The quality of the clamps is fine, but the screw takes a lot of effort to move. I ended up using large plastic zip ties instead of the clamps. Overall I'm happy with this purchase. Packaging was very good.
Review: A good product, but a pain to thread through the ceiling - So whoever built my house decided to install a bathroom fan with no vent to the outside. Naturally, I had to correct this but that involved threading this duct through a pre-existing ceiling - 15 feet then a left hand turn then 15 more feet to the outside. This product made the journey. It's a sturdy duct. It got dragged over rebar, no problem. It handled being tied to a dryer brush, no problem. The outside never tore. The metal rings never got bent out of shape. It's so sturdy that it was kind of a problem, since it could NOT squish its way past pipes and wires. It also stops dead if it hits the pointy part of a screw. It doesn't rip, it just get caught then refuses to move. Because of this, I ended up having to open the ceiling in one spot to get it around a big pipe and two exposed screws. For anyone looking to do a similar project, I recommend using the smallest duct possible (I bought 4inch but I really wish I had bought 3inch). I'd also reconsider using an insulated duct, as the insulation adds two inches to the width of the duct and it doesn't squish down as much as you'd hope it would. And use the dryer-vent brush strategy for getting it through your ceiling. First, thread a long dryer-vent brush through the ceiling, then tie the brush end to the duct, then pull the other end of the brush - thus dragging the duct into the ceiling. But I'm glad I bought what I did. In the end, there is surprisingly strong airflow through the duct (I bought two and connected them to go the distance), and I credit the insulation with tamping down noise from the bathroom.

## Features

- Efficient Insulation: Made with thick aluminum foil material and high-strength spiral steel wire, encased in a layer of fiberglass insulation, effectively reducing heat loss and improving thermal efficiency.
- High-Quality Fiberglass Insulation: Reduces energy waste while absorbing noise generated during operation, enhancing comfort.
- 3-Layer Tough: Constructed from durable aluminum foil and PET film, reinforced with a fiberglass grid, achieving an R-6.0 Thermal Resistance value, ensuring safety during operation and extending the product's lifespan.
- Flexible and Easy to Use: Can be bent, compressed, or cut as needed for installation without affecting the interior of the duct, reducing air resistance and improving installation adaptability.
- Variety of Applications: Primarily used for temperature control, dehumidification, and ventilation needs in various settings such as central air conditioning, fresh air systems, and greenhouse tents.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CS2MQCS8 |
| Best Sellers Rank | #49,272 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #69 in HVAC Ducting |
| Brand | VEVOR |
| Brand Name | VEVOR |
| Color | Silver |
| Customer Reviews | 4.4 out of 5 stars 227 Reviews |
| Included Components | Flexible Duct x 1, Stainless Steel Clamps x 2 |
| Item Dimensions L x W | 300"L x 4.2"W |
| Item Length | 300 Inches |
| Item Type Name | Insulated Flexible Duct |
| Item Weight | 7.1 Pounds |
| Manufacturer | VEVOR |
| Material | Aluminum , Fiberglass, Polyester , Spring Steel |
| Material Type | Aluminum, Fiberglass, Polyester, Spring Steel |
| Nominal Wall Thickness | 0.98 inches |
| Outside Diameter | 4 Inches |
| Product Dimensions | 300"L x 4.2"W |
| UPC | 197988275282 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** VEVOR
- **Color:** Silver
- **Item Length:** 300 Inches
- **Item Weight:** 7.05 Pounds
- **Manufacturer:** VEVOR
- **Material:** Aluminum, Fiberglass, Polyester, Spring Steel
- **Nominal Wall Thickness:** 0.98 inches
- **Outside Diameter:** 4 Inches
- **Product Dimensions:** 300"L x 4.2"W
- **UPC:** 197988275282

## Images

![Insulated Flexible Duct 4" x 25 Ft R-6.0，Energy-Efficient 3-Layer HVAC Hose with 2 Clamps for HVAC & Exhaust Ductwork - Image 1](https://m.media-amazon.com/images/I/81uREoa7FjL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works good - clamps aren't good though
*by D***E on December 21, 2025*

This flex duct works good. Easy to install. The outer aluminum wrap is thin but doesn't rip easily. It's easy to cut using a razer. The insulation is decent. The clamps are no good though. The quality of the clamps is fine, but the screw takes a lot of effort to move. I ended up using large plastic zip ties instead of the clamps. Overall I'm happy with this purchase. Packaging was very good.

### ⭐⭐⭐⭐⭐ A good product, but a pain to thread through the ceiling
*by S***R on July 10, 2025*

So whoever built my house decided to install a bathroom fan with no vent to the outside. Naturally, I had to correct this but that involved threading this duct through a pre-existing ceiling - 15 feet then a left hand turn then 15 more feet to the outside. This product made the journey. It's a sturdy duct. It got dragged over rebar, no problem. It handled being tied to a dryer brush, no problem. The outside never tore. The metal rings never got bent out of shape. It's so sturdy that it was kind of a problem, since it could NOT squish its way past pipes and wires. It also stops dead if it hits the pointy part of a screw. It doesn't rip, it just get caught then refuses to move. Because of this, I ended up having to open the ceiling in one spot to get it around a big pipe and two exposed screws. For anyone looking to do a similar project, I recommend using the smallest duct possible (I bought 4inch but I really wish I had bought 3inch). I'd also reconsider using an insulated duct, as the insulation adds two inches to the width of the duct and it doesn't squish down as much as you'd hope it would. And use the dryer-vent brush strategy for getting it through your ceiling. First, thread a long dryer-vent brush through the ceiling, then tie the brush end to the duct, then pull the other end of the brush - thus dragging the duct into the ceiling. But I'm glad I bought what I did. In the end, there is surprisingly strong airflow through the duct (I bought two and connected them to go the distance), and I credit the insulation with tamping down noise from the bathroom.

### ⭐⭐⭐⭐⭐ Simple if you know what you’re doing.
*by L***N on March 7, 2026*

I recently purchased a home. After being in it for a year or so we’ve come to notice it was a flipped house. One thing we noticed is our upstairs was not cooling right in 2 of the bedrooms. Checked the vent and no pressure. Followed the hvac lines and someone thought it was a great idea to split a 6in into 2 rooms. Ran another line to the box with this flex duct and better flow, cooler rooms, happier hvac.

## Frequently Bought Together

- VEVOR 4 Inch Insulated Flexible Duct R-6.0，25 Feet Long with 2 Duct Clamps, Heavy-Duty Three Layer Protection Air Ducting Hose for HVAC Heating Cooling Ventilation and Exhaust Ductwork Insulation
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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-06-20*