---
product_id: 492832841
title: "CUCHIILO Insulated Duct 8Inch 25Feet"
price: "1683 kr"
currency: DKK
in_stock: null
reviews_count: 8
url: https://www.desertcart.dk/products/492832841-cuchiilo-insulated-duct-8inch-25feet
store_origin: DK
region: Denmark
---

# Up to 85% noise reduction R-4.2 thermal insulation rating 8-inch diameter for versatile HVAC fit CUCHIILO Insulated Duct 8Inch 25Feet

**Price:** 1683 kr
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Flex your airflow with the duct that works as hard as you do!

## Quick Answers

- **What is this?** CUCHIILO Insulated Duct 8Inch 25Feet
- **How much does it cost?** 1683 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/492832841-cuchiilo-insulated-duct-8inch-25feet)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Flexible Yet Durable:** 8-inch thickened aluminum foil with elastic spiral steel wire bends freely without kinks or retraction.
- • **Noise-Cancelling Design:** Fluffy glass wool core absorbs sound, slashing noise by up to 85% for a quieter environment.
- • **Premium Thermal Barrier:** R-4.2 Owens Corning glass wool insulation keeps your system energy-efficient and cool under pressure.
- • **Multi-System Compatibility:** Perfect for central HVAC, fresh air ventilation, and mechanical recovery systems—no corrosive gases allowed.
- • **Heavy-Duty & Heat Resistant:** Withstands temperatures from -4℃ to 454℃, plus acid, alkali, and flame resistance for long-lasting performance.

## Overview

This 8-inch insulated flexible duct by Cuchiilo features a robust aluminum foil exterior reinforced with elastic spiral steel wire and Owens Corning glass wool insulation rated R-4.2. Designed for heavy-duty HVAC and exhaust applications, it offers superior thermal resistance (-4℃ to 454℃), excellent noise reduction up to 85%, and flexible installation without loss of shape or airflow efficiency.

## Description

Cuchiilo 8 Inch Insulated Duct,HVAC Insulation Duct,Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,8''25 'Insulated Flexible Ducting,R-4.2 for Heavy Duty HVAC & Exhaust Ductwork - desertcart.com

Review: It’s Ducting—And It Does Exactly What Ducting Should - Not much to say here: it’s 6" insulated flexible ducting, and it did the job perfectly. Easy to work with, solid insulation, and exactly what I needed for my project. Sometimes you just need something that works without any drama—and this delivered. Five stars!
Review: Tough Enough if you're careful - The inner "foil" layer was much tougher than another reviewer said. It's more of a "mylar" plastic silver mirror kind of material. I only needed 15 to 17 feet, so I didn't mind ruining the end I attached to a rope for pulling through the hordes of black widows and rattlers. The insulation is as expected. I did tear the outer layer just a tiny bit pulling it with a rope I'd fish-taped through a confined crawlspace trench I had to hand-excavate. Attaching it firmly to the flanges worked well however the Hose Clamp, or Radiator Clamp style items supplied were some metric size I had no socket bit for. So, picture a guy on his back in dirt with spider webs hanging down trying to use a flathead driver on his drill to tighten a long long long clamp. One spider said: Hey, how-ya-doin?" I have patience. I attached it to one flange from inside the home, the other from underneath. Both ends were easier than expected. This is a quality product, but fragile as you might imagine. Be careful of it and it's tough enough and a good value.

## Features

- 【🌿🛒High-quality performance 8 insualted duct】Made of thickened aluminum foil material and made of high-strength elastic spiral steel wire.The middle is covered with glass fiber insulation layer, which has high temperature resistance, acid and alkali resistance, and flame retardancy.
- 【🌿🛒Owens Corning Glass Wool Insualtion 】Glass wool Insualtion is the safest building material, with high corrosion resistance and thermal insulation,R value: R-4.2. The temperature resistance range is -4℃~454℃.
- 【🌿🛒Sound absorption and noise reduction insulation】 The internal structure of glass wool insulationis fluffy and the overall density is large, which can absorb the sound in time,Noise can be reduced by up to 85%.
- 【🌿🛒8 inch Flexible Duct】 It can be bent arbitrarily, without rigid elbows, the aluminum foil is self-sustaining and will not retract after installation.It can maintain the flatness in the tube and reduce the wind resistance.
- 【🌿🛒Multi Function】Used for high, medium and low pressure ventilation system without corrosive gas. Mainly used in central air conditioning HVAC system,Fresh air ventilation systems, mechanical equipment recovery systems and other ventilation systems that do not contain corrosive gases, etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Cuchiilo |
| Item Weight | 11.03 pounds |
| Product Dimensions | 300 x 8 x 0.04 inches |
| Size | 8 IN 25 FT |
| Color | R-4.2 Insulation |
| Material | Rubber |
| Coverage | 200 square feet (R-4.2) |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Rubber
- **Brand:** Cuchiilo
- **Recommended Uses For Product:** Ventilation and Air Conditioning Systems
- **Product Dimensions:** 300"L x 8"W
- **Manufacturer:** Cuchiilo

## Images

![CUCHIILO Insulated Duct 8Inch 25Feet - Image 1](https://m.media-amazon.com/images/I/712OBBWkU6L._SS80_.jpg)
![CUCHIILO Insulated Duct 8Inch 25Feet - Image 2](https://m.media-amazon.com/images/I/712OBBWkU6L.jpg)
![CUCHIILO Insulated Duct 8Inch 25Feet - Image 3](https://m.media-amazon.com/images/I/715RRsWXHbL._SS80_.jpg)
![CUCHIILO Insulated Duct 8Inch 25Feet - Image 4](https://m.media-amazon.com/images/I/715RRsWXHbL.jpg)
![CUCHIILO Insulated Duct 8Inch 25Feet - Image 5](https://m.media-amazon.com/images/I/7198Zk97eXL._SS80_.jpg)

## Available Options

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

## Questions & Answers

**Q: Why is it important to have HVAC insulated ducts in a building?**
A: Insulated ducts help maintain consistent temperature levels and prevent energy loss. They also reduce condensation and help improve indoor air quality.

**Q: Do insulated HVAC ducts help reduce noise from the HVAC system?**
A: It may help reduce noise the importance of the insulation is to reduce condensation in changeable temperature areas.

**Q: Can this be used for a bathroom vent fan?**
A: Yes you can.

**Q: Are there any maintenance tips for ensuring the longevity of insulated HVAC ducts?**
A: Regular inspections for damage or wear, proper sealing of joints, and keeping the ducts clean can help extend the life of insulated HVAC ducts.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It’s Ducting—And It Does Exactly What Ducting Should
*by D***N on November 28, 2025*

Not much to say here: it’s 6" insulated flexible ducting, and it did the job perfectly. Easy to work with, solid insulation, and exactly what I needed for my project. Sometimes you just need something that works without any drama—and this delivered. Five stars!

### ⭐⭐⭐⭐⭐ Tough Enough if you're careful
*by M***K on December 17, 2024*

The inner "foil" layer was much tougher than another reviewer said. It's more of a "mylar" plastic silver mirror kind of material. I only needed 15 to 17 feet, so I didn't mind ruining the end I attached to a rope for pulling through the hordes of black widows and rattlers. The insulation is as expected. I did tear the outer layer just a tiny bit pulling it with a rope I'd fish-taped through a confined crawlspace trench I had to hand-excavate. Attaching it firmly to the flanges worked well however the Hose Clamp, or Radiator Clamp style items supplied were some metric size I had no socket bit for. So, picture a guy on his back in dirt with spider webs hanging down trying to use a flathead driver on his drill to tighten a long long long clamp. One spider said: Hey, how-ya-doin?" I have patience. I attached it to one flange from inside the home, the other from underneath. Both ends were easier than expected. This is a quality product, but fragile as you might imagine. Be careful of it and it's tough enough and a good value.

### ⭐⭐⭐⭐⭐ GREAT VALUE
*by J***. on November 19, 2025*

WORKED GREAT

## Frequently Bought Together

- Cuchiilo 8 Inch 25 Feet Insulated Flexible Duct R4.2,8 Inch Insulated Flexible Duct,8in Insulated Ducting 8in Insulated Ducting 8insulated Flexible Duct,for Heating and Air Conditioning HVAC Systems
- TapePlus 4 Pack Professional Grade Aluminum Foil Tape - 2 Inch by 210 Feet (70 Yards) - Perfect for HVAC, Sealing & Patching Hot & Cold Air Ducts, Metal Repair, and Much More
- Aluminum Foil Tape, 2 inch x 65 Feet (3.9 mil), Insulation Adhesive Metal High Temperature Heavy Duty HVAC Tape, Silver for Ductwork, Dryer Vent, HVAC

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-29*