---
product_id: 511731286
title: "12 Inch Insulated Duct,HVAC Insulation Duct,Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,12''25 'Insulated Flexible Ducting,R-4.2 for Heavy Duty HVAC & Exhaust Ductwork"
brand: "cuchiilo"
price: "€ 508.67"
currency: EUR
in_stock: true
reviews_count: 13
category: "Cuchiilo"
url: https://www.desertcart.fi/products/511731286-12-inch-insulated-duct-hvac-insulation-duct-insulated-flex-duct
store_origin: FI
region: Finland
---

# Up to 85% noise reduction with sound-absorbing glass wool R-4.2 insulation rating for superior thermal resistance 12-inch diameter for versatile HVAC fit 12 Inch Insulated Duct,HVAC Insulation Duct,Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,12''25 'Insulated Flexible Ducting,R-4.2 for Heavy Duty HVAC & Exhaust Ductwork

**Brand:** cuchiilo
**Price:** € 508.67
**Availability:** ✅ In Stock

## Summary

> ❄️ Stay cool, quiet, and efficient with the duct that means business.

## Quick Answers

- **What is this?** 12 Inch Insulated Duct,HVAC Insulation Duct,Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,12''25 'Insulated Flexible Ducting,R-4.2 for Heavy Duty HVAC & Exhaust Ductwork by cuchiilo
- **How much does it cost?** € 508.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/511731286-12-inch-insulated-duct-hvac-insulation-duct-insulated-flex-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

- • **Quiet Comfort:** Advanced sound absorption cuts noise by up to 85%, creating a peaceful workspace or home.
- • **Durable & Resistant:** Thick aluminum foil and high-strength steel wire resist heat, acids, alkalis, and flames for heavy-duty use.
- • **Effortless Flexibility:** Bend and install without rigid elbows—maintains shape and reduces airflow resistance.
- • **Premium Thermal Shield:** R-4.2 Owens Corning glass wool insulation keeps your environment perfectly climate-controlled.
- • **Universal HVAC Solution:** Ideal for all pressure ventilation systems—central AC, fresh air, and mechanical recovery without corrosive gases.

## Overview

The Cuchiilo 12 Inch Insulated Flexible Duct combines heavy-duty aluminum foil, steel wire, and Owens Corning glass wool insulation (R-4.2) to deliver superior thermal resistance and up to 85% noise reduction. Designed for versatile HVAC applications, it offers easy installation with flexible bending, durability against heat and corrosive elements, and optimal airflow performance for professional-grade ventilation systems.

## Description

Cuchiilo 12 Inch Insulated Duct,HVAC Insulation Duct,Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,12''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 12 insualted 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%.
- 【🌿🛒12 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 Hvac Insulated Duct 12 inch】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 | B0BN219CRW |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #26,061 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #26 in HVAC Ducting |
| Color | R-4.2 Insulation |
| Coverage | 1570.8 square feet |
| Customer Reviews | 4.4 4.4 out of 5 stars (253) |
| Date First Available | November 21, 2022 |
| Item Package Quantity | 1 |
| Item Weight | 15.87 pounds |
| Manufacturer | Cuchiilo |
| Material | Aluminum foil, Steel wire, Fiberglass |
| Product Dimensions | 300 x 12 x 0.04 inches |
| Size | 12 IN 25 FT |

## Product Details

- **Brand:** Cuchiilo
- **Manufacturer:** Cuchiilo
- **Material:** Aluminum foil, Steel wire, Fiberglass
- **Product Dimensions:** 300"L x 12"W
- **Recommended Uses For Product:** Ventilation and HVAC Systems

## Images

![12 Inch Insulated Duct,HVAC Insulation Duct,Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,12''25 'Insulated Flexible Ducting,R-4.2 for Heavy Duty HVAC & Exhaust Ductwork - Image 1](https://m.media-amazon.com/images/I/41K121LiRkL.jpg)
![12 Inch Insulated Duct,HVAC Insulation Duct,Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,12''25 'Insulated Flexible Ducting,R-4.2 for Heavy Duty HVAC & Exhaust Ductwork - Image 2](https://m.media-amazon.com/images/I/41eJhsl3QHL.jpg)
![12 Inch Insulated Duct,HVAC Insulation Duct,Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,12''25 'Insulated Flexible Ducting,R-4.2 for Heavy Duty HVAC & Exhaust Ductwork - Image 3](https://m.media-amazon.com/images/I/515pR7YiZWL.jpg)
![12 Inch Insulated Duct,HVAC Insulation Duct,Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,12''25 'Insulated Flexible Ducting,R-4.2 for Heavy Duty HVAC & Exhaust Ductwork - Image 4](https://m.media-amazon.com/images/I/517-nMEwQkL.jpg)
![12 Inch Insulated Duct,HVAC Insulation Duct,Insulated Flex Duct, AC Fleixble Duct,HVAC Ducting, Insulation Duct,12''25 'Insulated Flexible Ducting,R-4.2 for Heavy Duty HVAC & Exhaust Ductwork - Image 5](https://m.media-amazon.com/images/I/51Cc1bJFkOL.jpg)

## 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

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-27*