---
product_id: 727848169
title: "Flexible 4\" Aluminum Duct Heavy Duty 4-Layer Protection for Heating, Cooling, Ventilation and Exhaust - 8 Feet Long"
brand: "ac infinity"
price: "2829927₫"
currency: VND
in_stock: false
url: https://www.desertcart.vn/products/727848169-flexible-4-aluminum-duct-heavy-duty-4-layer-protection-heating
store_origin: VN
region: Vietnam
---

# Flexible steel wire spiral for tight spaces Customizable 8ft length, easy to cut 4-layer heavy-duty leak & tear resistance Flexible 4" Aluminum Duct Heavy Duty 4-Layer Protection for Heating, Cooling, Ventilation and Exhaust - 8 Feet Long

**Brand:** ac infinity
**Price:** 2829927₫
**Availability:** ❌ Out of Stock

## Summary

> 🌀 Elevate your airflow game with flexible, heavy-duty ducting that adapts to your space and style.

## Quick Answers

- **What is this?** Flexible 4" Aluminum Duct Heavy Duty 4-Layer Protection for Heating, Cooling, Ventilation and Exhaust - 8 Feet Long by ac infinity
- **How much does it cost?** 2829927₫ with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/727848169-flexible-4-aluminum-duct-heavy-duty-4-layer-protection-heating)

## Best For

- ac infinity enthusiasts

## Why This Product

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

## Key Features

- • **Complete Installation Kit:** Includes 2 stainless steel 4" duct clamps for secure, hassle-free mounting right out of the box.
- • **Flexibility Meets Function:** Internal steel wire spiral allows effortless bending and installation in hard-to-reach or confined spaces.
- • **Tailored Fit for Every Setup:** Easily cut the 8-foot duct to your exact length, ensuring a perfect fit for any HVAC, ventilation, or cooling project.
- • **Versatile Ventilation Solution:** Ideal for HVAC, hydroponics, grow tents, dryers, attics, and AV equipment cooling—engineered for professional-grade airflow.
- • **Built to Last, Designed to Perform:** Durable 4-layer aluminum & PVC construction resists leaks, rips, and tears for long-term reliability.

## Overview

The AC Infinity Flexible 4" Aluminum Duct features a robust 4-layer design combining fire-resistant aluminum and protective PVC for superior durability and leak prevention. Its steel wire spiral core offers exceptional flexibility, making installation in tight or awkward spaces effortless. At 8 feet long and easily customizable by cutting, it suits a wide range of ventilation needs from HVAC systems to hydroponic grow rooms. Included stainless steel clamps ensure a secure fit, making this duct a trusted choice for professionals seeking reliable, adaptable airflow solutions.

## Description

Product Description This duct is ideal for ventilation, circulation, heating and cooling applications. The 4-layer design makes it more durable and leak resistant than a single layer. The inner layer is made of durable double layer aluminum that is fireproof/flame resistant. The outer layer is made of a double layer PVC thermoplastic that prevents leaks while protecting the aluminum from cuts and tears. Internal steel wire spiral construction is flexible and easy to install in hard-to-reach places. Ducts can be shortened by cutting to fit a variety of applications. Includes 2 stainless steel duct clamps. Occasions Mainly used for hydroponics, tents, bathrooms, attics, heating and other various occasions where air circulation and ventilation is required. It can also be used for cooling areas where AV equipment is stored, closets, racks, cabinets, etc.

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## Features

- Suitable for ventilation in HVAC, dryer, cultivation room, tent, etc
- Durable 4-layer design resists leaks, tears, and tears
- Steel spiral construction is flexible and easy to install in hard-to-reach areas
- Made of aluminum and thermoplastic material Tubing can be shortened for a variety of applications
- Duct Size: 4" | Length: 8' | Includes 2 Stainless Steel 4" Duct Clamps

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WRDTX4C |
| Amazon Bestseller | #172,543 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #387 in Industrial Duct Hoses |
| Brand | AC Infinity |
| Brand Name | AC Infinity |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 11,016 Your Review |
| Global Trade Identification Number | 00819137021020 |
| Item Length | 8 Feet |
| Item Weight | 0.48 Kilograms |
| Manufacturer | AC Infinity |
| Material | Aluminum, PVC, Stainless Steel |
| Material Type | Aluminum, PVC, Stainless Steel |
| Outside Diameter | 4 Inches |
| UPC | 819137021020 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** AC Infinity
- **Color:** Black
- **Item Length:** 8 Feet
- **Item Weight:** 0.48 Kilograms
- **Manufacturer:** AC Infinity
- **Material:** Aluminum, PVC, Stainless Steel
- **Number of Packs:** 1
- **Outside Diameter:** 4 Inches
- **UPC:** 819137021020
- **Unit Count:** 1.0 Count

## Images

![Flexible 4" Aluminum Duct Heavy Duty 4-Layer Protection for Heating, Cooling, Ventilation and Exhaust - 8 Feet Long - Image 1](https://m.media-amazon.com/images/I/51PW8PLH72L.jpg)

## Questions & Answers

**Q: What is the fully compressed length of the 8FT 4" diameter duct?**
A: 5 1/2 inches

**Q: Is this safe to vent a portable ac? ac's can get really hot.**
A: I've never owned a portable AC. If there is a 4"  circle shaped vent hole on the portable AC, it should tolerate the heat. Stationary ACs condensate water, there is no vent hole.

**Q: anyone use this for garage auto exhaust tube?**
A: I am currently using this to exhaust the air in my wood shop

**Q: Is this suitable for marine use?**
A: No paperwork came with it indicating whether it is USCG compliant (if there is such a requirement).  If you want to use it as a duct for a bilge blower, I would say go ahead and use it.  If you are concerned about fire retardancy, I suggest you contact the seller first.

## Frequently Bought Together

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-06-04*