---
product_id: 451804138
title: "7 inch Flexible Duct, Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,7''25 'Feet Insulated Flexible Ducting,R-4.2 Air Duct Pipe for for Heavy Duty HVAC & Exhaust Ductwork"
brand: "cuchiilo"
price: "R3136"
currency: ZAR
in_stock: true
url: https://www.desertcart.co.za/products/451804138-7-inch-flexible-duct-insulated-flex-duct-ac-fleixble-duct
store_origin: ZA
region: South Africa
---

# 7-inch diameter for optimal airflow Up to 85% noise reduction with glass wool insulation R-4.2 insulation rating for superior thermal resistance 7 inch Flexible Duct, Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,7''25 'Feet Insulated Flexible Ducting,R-4.2 Air Duct Pipe for for Heavy Duty HVAC & Exhaust Ductwork

**Brand:** cuchiilo
**Price:** R3136
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your airflow game with flexible power and silent strength!

## Quick Answers

- **What is this?** 7 inch Flexible Duct, Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,7''25 'Feet Insulated Flexible Ducting,R-4.2 Air Duct Pipe for for Heavy Duty HVAC & Exhaust Ductwork by cuchiilo
- **How much does it cost?** R3136 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/451804138-7-inch-flexible-duct-insulated-flex-duct-ac-fleixble-duct)

## 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

- • **Heavy-Duty Durability:** Thickened aluminum foil and elastic spiral steel wire provide long-lasting strength and shape retention.
- • **Flexible 7-inch Design:** Bend and install effortlessly without rigid elbows, maintaining airflow efficiency.
- • **Noise-Reducing Comfort:** Fluffy glass wool insulation absorbs sound, cutting noise by up to 85% for a quieter environment.
- • **Premium R-4.2 Insulation:** High-grade Owens Corning glass wool ensures top-tier thermal resistance from -4℃ to 454℃.
- • **Versatile HVAC Compatibility:** Perfect for central AC, fresh air ventilation, and mechanical recovery systems without corrosive gases.

## Overview

This 7-inch, 25-foot insulated flexible duct combines durable aluminum construction with Owens Corning glass wool insulation (R-4.2) to deliver superior thermal resistance and noise reduction up to 85%. Designed for heavy-duty HVAC and exhaust systems, it offers easy installation with flexible bending and maintains airflow efficiency without rigid elbows.

## Description

7 inch Flexible Duct, Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,7''25 'Feet Insulated Flexible Ducting,R-4.2 Air Duct Pipe for for Heavy Duty HVAC & Exhaust Ductwork

## Features

- 【🌿🛒High-quality performance 7 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
- 【🌿🛒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%.
- 【🌿🛒7 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 | 9.53 pounds |
| Product Dimensions | 300 x 7 x 0.04 inches |
| Size | 7 IN 25 FT |
| Color | R-4.2 Insulation |
| Material | Aluminum |
| Thickness | 7 Inches |
| Coverage | [EO] Estimated: Circular area with a 7-inch diameter and a 25-feet length (circumference can be calculated with the formula C = πd, where d is the diameter; the area can be calculated with the formula A = πr², where r is the radius) |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Aluminum
- **Brand:** Cuchiilo
- **Item Thickness:** 7 Inches
- **Product Dimensions:** 300"L x 7"W
- **Manufacturer:** Cuchiilo

## Images

![7 inch Flexible Duct, Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,7''25 'Feet Insulated Flexible Ducting,R-4.2 Air Duct Pipe for for Heavy Duty HVAC & Exhaust Ductwork - Image 1](https://m.media-amazon.com/images/I/71WBnYiYrLL.jpg)
![7 inch Flexible Duct, Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,7''25 'Feet Insulated Flexible Ducting,R-4.2 Air Duct Pipe for for Heavy Duty HVAC & Exhaust Ductwork - Image 2](https://m.media-amazon.com/images/I/712OBBWkU6L.jpg)
![7 inch Flexible Duct, Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,7''25 'Feet Insulated Flexible Ducting,R-4.2 Air Duct Pipe for for Heavy Duty HVAC & Exhaust Ductwork - Image 3](https://m.media-amazon.com/images/I/71ia-CZVOOL.jpg)
![7 inch Flexible Duct, Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,7''25 'Feet Insulated Flexible Ducting,R-4.2 Air Duct Pipe for for Heavy Duty HVAC & Exhaust Ductwork - Image 4](https://m.media-amazon.com/images/I/7198Zk97eXL.jpg)
![7 inch Flexible Duct, Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,7''25 'Feet Insulated Flexible Ducting,R-4.2 Air Duct Pipe for for Heavy Duty HVAC & Exhaust Ductwork - Image 5](https://m.media-amazon.com/images/I/71ydRiEVRQL.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.

## Frequently Bought Together

- Cuchiilo 7 Inch 25 Feet Insulated Flexible Duct R4.2,7 Flexible Duct,7 Inch Ac Duct,7 Inch Ducting,Flex Duct 7 Inch, for Heating and Air Conditioning HVAC Systems
- EesTeck 4Pcs 8" Adjustable 304 Stainless Steel Duct Clamps Hose Clamp Pipe Clamp Air Ducting Clamp worm drive hose clamps (194mm-216mm)

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**Shop now:** [https://www.desertcart.co.za/products/451804138-7-inch-flexible-duct-insulated-flex-duct-ac-fleixble-duct](https://www.desertcart.co.za/products/451804138-7-inch-flexible-duct-insulated-flex-duct-ac-fleixble-duct)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-13*