---
product_id: 492832841
title: "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"
brand: "cuchiilo"
price: "₨7682"
currency: SCR
in_stock: true
reviews_count: 13
category: "Cuchiilo"
url: https://www.desertcart.sc/products/492832841-cuchiilo-8-inch-insulated-duct-hvac-insulation-duct-insulated-flex
store_origin: SC
region: Seychelles
---

# Up to 85% noise reduction R-4.2 high thermal insulation 8-inch flexible diameter 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

**Brand:** cuchiilo
**Price:** ₨7682
**Availability:** ✅ In Stock

## Summary

> 🌀 Upgrade your airflow game with flexible, quiet, and energy-smart ducting!

## Quick Answers

- **What is this?** 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 by cuchiilo
- **How much does it cost?** ₨7682 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/492832841-cuchiilo-8-inch-insulated-duct-hvac-insulation-duct-insulated-flex)

## 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

- • **Quiet Comfort:** Fluffy glass wool core absorbs sound, reducing noise by up to 85% for peaceful environments.
- • **Durable & Resistant:** Thickened aluminum foil and spiral steel wire resist heat, acids, alkalis, and flames.
- • **Effortless Flexibility:** Bend and install without rigid elbows—perfect for complex HVAC layouts.
- • **Versatile HVAC Solution:** Ideal for high, medium, and low-pressure ventilation systems without corrosive gases.
- • **Superior Thermal Barrier:** R-4.2 Owens Corning glass wool insulation keeps your system energy-efficient year-round.

## Overview

The Cuchiilo 8 Inch Insulated Flexible Duct features a robust aluminum foil exterior reinforced with elastic spiral steel wire and a high-performance Owens Corning glass wool insulation core rated R-4.2. Designed for heavy-duty HVAC and exhaust ductwork, it offers excellent temperature resistance (-4℃ to 454℃), superior noise reduction up to 85%, and flexible installation without rigid elbows. This ducting is engineered for durability, thermal efficiency, and quiet operation across various ventilation systems.

## 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 |
|---------------|-------|
| ASIN | B0BGH2SZ5H |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #22,681 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #21 in HVAC Ducting |
| Color | R-4.2 Insulation |
| Coverage | 200 square feet (R-4.2) |
| Customer Reviews | 4.4 4.4 out of 5 stars (265) |
| Date First Available | September 26, 2022 |
| Item Weight | 11.03 pounds |
| Manufacturer | Cuchiilo |
| Material | Rubber |
| Product Dimensions | 300 x 8 x 0.04 inches |
| Size | 8 IN 25 FT |

## Product Details

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

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/71qOCNmLMXL.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.

### ⭐⭐⭐⭐⭐ Good value
*by D***N on January 15, 2026*

Works well and seems well built.

## 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 Seychelles*
*Store origin: SC*
*Last updated: 2026-03-08*