---
product_id: 491843948
title: "Insulated Flexible Duct R4.2, 100mm x 7.62m, Owens Corning Fibreglass, HVAC Ventilation Hose, Noise Reduction, Energy Efficient, Free Gloves & Clamps Included"
brand: "cuchiilo"
price: "R2038"
currency: ZAR
in_stock: true
reviews_count: 7
category: "Cuchiilo"
url: https://www.desertcart.co.za/products/491843948-insulated-flexible-duct-r4-2-100mm-x-7-62m-owens
store_origin: ZA
region: South Africa
---

# Flexible & bendable design Up to 85% noise reduction R-4.2 thermal insulation Insulated Flexible Duct R4.2, 100mm x 7.62m, Owens Corning Fibreglass, HVAC Ventilation Hose, Noise Reduction, Energy Efficient, Free Gloves & Clamps Included

**Brand:** cuchiilo
**Price:** R2038
**Availability:** ✅ In Stock

## Summary

> 🔥 Bend, Insulate, Silence — HVAC’s sleek new MVP!

## Quick Answers

- **What is this?** Insulated Flexible Duct R4.2, 100mm x 7.62m, Owens Corning Fibreglass, HVAC Ventilation Hose, Noise Reduction, Energy Efficient, Free Gloves & Clamps Included by cuchiilo
- **How much does it cost?** R2038 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/491843948-insulated-flexible-duct-r4-2-100mm-x-7-62m-owens)

## Best For

- cuchiilo enthusiasts

## Why This Product

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

## Key Features

- • **Ultimate Flexibility:** 5-inch diameter duct bends effortlessly—no rigid elbows needed—perfect for tight, complex installations.
- • **Noise-Reducing Comfort:** Fluffy glass wool core absorbs sound, slashing operational noise by up to 85% for a quieter environment.
- • **Hassle-Free Installation:** Includes cut-resistant gloves and stainless steel clamps for a secure, professional setup every time.
- • **Durable & Flame Retardant:** Thickened aluminum foil with high-strength spiral steel wire resists heat, acids, and flames for lasting safety.
- • **Superior Thermal Efficiency:** R-4.2 Owens Corning glass wool insulation keeps your HVAC system energy-smart and cost-effective.

## Overview

This 5-inch by 25-foot insulated flexible duct features R-4.2 Owens Corning glass wool insulation for superior thermal resistance and noise reduction up to 85%. Constructed with durable aluminum foil and spiral steel wire, it offers flexible installation without rigid elbows, maintaining airflow efficiency and flame retardancy. Ideal for professional HVAC upgrades, it includes installation accessories for a seamless fit.

## Description

Simplify and optimise your HVAC system with our Insulated Flexible Duct R4.2, available in sizes 100mm, 125mm, 150mm, 175mm, and 200mm, each with a length of 7.62 metres. Designed with premium Owens Corning fibreglass insulation, this duct offers superior thermal efficiency, reducing heat loss and energy consumption while maintaining consistent airflow. The flexible aluminium design ensures easy installation in tight or irregular spaces without compromising durability or performance. This duct is not only energy-efficient but also helps reduce noise and vibrations for quieter operation, making it ideal for both residential and commercial settings. Included in the package are cut-resistant gloves and stainless steel clamps to ensure a hassle-free and secure setup. Whether you're upgrading an existing HVAC system or installing a new one, our Insulated Flexible Duct R6 is the perfect choice for quality, durability, and energy savings.

Review: Problem Solved - Very good solved the problem with moisture in the pipe
Review: Really good product - excellent easy to fit

## Features

- 【🌿🛒High-quality performance 5 insulated flexible 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%.
- 【🌿🛒5 inch insulated 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BGX4HYSZ |
| Batteries Required? | No |
| Batteries included? | No |
| Colour | R-4.2 Insulation |
| Coverage | Area or volume that the duct can effectively insulate based on its R-value and dimensions |
| Customer Reviews | 4.3 4.3 out of 5 stars (230) |
| Date First Available | 3 Oct. 2022 |
| Item Package Quantity | 1 |
| Item Weight | 2.77 kg |
| Manufacturer | Cuchiilo |
| Product Dimensions | 762 x 12.7 x 0.1 cm; 2.77 kg |
| Size | 5 IN X 25 FT |

## Product Details

- **Brand:** Cuchiilo
- **Item thickness:** 5 Inches
- **Material:** Aluminium, Glass Fiber
- **Product dimensions:** 7.62L x 0.13W metres
- **Recommended uses for product:** Thermal insulation, Sound insulation, Fire resistance

## Images

![Insulated Flexible Duct R4.2, 100mm x 7.62m, Owens Corning Fibreglass, HVAC Ventilation Hose, Noise Reduction, Energy Efficient, Free Gloves & Clamps Included - Image 1](https://m.media-amazon.com/images/I/71WBnYiYrLL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Problem Solved
*by D***I on 4 January 2026*

Very good solved the problem with moisture in the pipe

### ⭐⭐⭐⭐⭐ Really good product
*by C***. on 7 November 2025*

excellent easy to fit

### ⭐⭐⭐⭐⭐ Review
*by G***A on 24 November 2025*

Il tubo è molto resistente e lo consiglio vivamente....

## Frequently Bought Together

- Cuchiilo 4 Inch Insulated Flexible Duct,HVAC Insulation Duct,25 Feet Insulated Duct, 4 in Insulated Duct Hose, R4.2 Air Flexible Duct Aluminum Hose 4''25' Long,for HVAC Flex Ductowrk
- EesTeck 4" (Diameter) Adjustable 304 Stainless Steel Duct Clamps Hose Clamp Pipe Clamp Air Ducting Clamp worm drive hose clamps (4Pcs, 91mm-114mm)
- 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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**Shop now:** [https://www.desertcart.co.za/products/491843948-insulated-flexible-duct-r4-2-100mm-x-7-62m-owens](https://www.desertcart.co.za/products/491843948-insulated-flexible-duct-r4-2-100mm-x-7-62m-owens)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-27*