---
product_id: 175705307
title: "VIVOSUN 4 Inch Flex Aluminum Ducting, 25 Ft Air Duct with 2 Clamps, 2-Pack"
brand: "vivosun"
price: "¥29172"
currency: JPY
in_stock: true
reviews_count: 13
category: "Vivosun"
url: https://www.desertcart.jp/products/175705307-vivosun-4-inch-flex-aluminum-ducting-25-ft-air-duct
store_origin: JP
region: Japan
---

# 25 ft length for versatile routing Includes 2 rustproof steel clamps Multi-layer fire-retardant aluminum build VIVOSUN 4 Inch Flex Aluminum Ducting, 25 Ft Air Duct with 2 Clamps, 2-Pack

**Brand:** vivosun
**Price:** ¥29172
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your airflow game with VIVOSUN’s pro-grade flexible ducting!

## Quick Answers

- **What is this?** VIVOSUN 4 Inch Flex Aluminum Ducting, 25 Ft Air Duct with 2 Clamps, 2-Pack by vivosun
- **How much does it cost?** ¥29172 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/175705307-vivosun-4-inch-flex-aluminum-ducting-25-ft-air-duct)

## Best For

- vivosun enthusiasts

## Why This Product

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

## Key Features

- • **Flexible 25-Foot Reach:** Easily navigate complex spaces with ample duct length for professional-grade airflow management.
- • **Lightweight & Portable:** Effortless installation and repositioning without compromising structural integrity or airflow.
- • **Universal Compatibility:** Perfectly pairs with 4-inch fans and dryers, streamlining your HVAC or ventilation setup.
- • **Secure Leak-Proof Connections:** Comes with two corrosion-resistant steel clamps for airtight, reliable fittings every time.
- • **Durable Multi-Layer Protection:** Heavy-duty aluminum foil and PET thermoplastic layers ensure leak resistance and fire safety.

## Overview

The VIVOSUN 4 Inch Flex Aluminum Ducting 2-Pack offers 25 feet of premium, multi-layered, fire-retardant aluminum ducting designed for superior airflow and durability. Equipped with rustproof steel clamps, it ensures secure, leak-proof connections compatible with standard 4-inch fans and dryers. Lightweight yet robust, this ducting is ideal for professional HVAC, ventilation, and exhaust applications, delivering flexible installation and long-lasting performance.

## Description

VIVOSUN 4 Inch Flex Aluminum Ducting, 25 Ft Air Duct with 2 Clamps, 2-Pack | High-Temp Aluminum Duct, Adjustable Length & Shape for Easy Mounting, Compatible with Dryers & Inline Duct Fans - desertcart.com

Review: Durable, flexible ducting that works great - This 4-inch VIVOSUN aluminum duct has been a great addition to my ventilation setup. The 25-foot length gives plenty of room to route it where needed, and it is flexible enough to work around corners without being difficult to install. It feels well made with its multi-layer construction and has held up well in use. The duct keeps its shape nicely, connects securely to standard 4-inch fittings, and works well for HVAC, exhaust, or 3D printer ventilation projects. Overall, a durable and versatile duct at a good value. Very happy with it.
Review: Great duct - This 4-inch aluminum foil ducting is extremely well made and far sturdier than I expected. The aluminum layering feels thick and reinforced, not cheap or flimsy, and it holds its shape perfectly once installed. I really like the black outer layer—it looks clean, professional, and helps with light control compared to standard silver ducting. The hose is flexible enough to route easily, yet strong enough that it doesn’t collapse or kink. The 8-foot length was perfect for my setup, and the included clamps fit snug and secure with no air leaks. Overall, this is a high-quality, heavy-duty vent hose that feels reliable and built to last. Great for HVAC, dryer vents, or exhaust fan systems. I would absolutely buy this again and recommend it to anyone looking for durable, trustworthy ducting.

## Features

- Perfect Connector: This ducting is primarily used with duct fan systems in various air circulation and ventilation projects to move and transport air, increasing airflow and easing connections between spaces; It's compatible with front-mounted and top-loading dryers/fans; Duct connection specifications note: match duct size to fan diameter for a tight, leak-proof fit – e.g., pair a 4'' fan with 4'' ducting
- Premium Material: Made of aluminum, it is resistant to high-temperature and corrosion-resistant, being able to serve for a long time; The stainless steel clamps are rustproof, corrosion-resistant, and heavy-duty, ensuring a seamless junction
- Multi-Layer Protection: It features multi-layer protection, making it more durable and resistant to leaks than single-layer ones; The internal and outer layers are made of heavy-duty aluminum foil that is fire/flame-retardant; Its middle layer adopts PET thermoplastic that protects the ducting from cuts and tears, all while stopping leakage
- Flexible and Convenient: Thanks to the built-in steel wire, the length and shape of this ducting is flexible to change for fitting exhaust fan blower or inline fan; Being portable and lightweight, it can be installed at any place; Comes with 2 duct clamps in the same duct opening size for easy setup and securer connection
- Abundant Applications: Suitable for both commercial and residential air duct solutions; Widely used in HVAC applications, bathroom venting, stove exhaust, dryer ventilation, kitchen cooking exhaust, planting room, or warmhouse air circulation, etc.; Also used to cool AV equipment rooms, closets, racks, and cabinets

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WFDCYZL |
| Best Sellers Rank | #2,048 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3 in HVAC Ducting |
| Brand | VIVOSUN |
| Brand Name | VIVOSUN |
| Color | Silver |
| Customer Reviews | 4.6 out of 5 stars 8,577 Reviews |
| Included Components | Aluminum Ducting with Clamps |
| Item Dimensions L x W | 300"L x 4"W |
| Item Length | 300 inches |
| Item Weight | 1.56 kg |
| Manufacturer | VIVOSUN |
| Material | Aluminum , PET Thermoplastic Resists, Steel Wire |
| Material Type | Aluminum, PET Thermoplastic Resists, Steel Wire |
| Maximum Pressure | 300 psi |
| Nominal Wall Thickness | 1.3 month |
| Outside Diameter | 4 inches |
| Product Dimensions | 300"L x 4"W |
| UPC | 736783800291 |
| Unit Count | 2 Count |

## Product Details

- **Brand:** VIVOSUN
- **Color:** Silver
- **Item Length:** 300 inches
- **Item Weight:** 1.56 kg
- **Material:** Aluminum, PET Thermoplastic Resists, Steel Wire
- **Maximum Pressure:** 300 psi
- **Nominal Wall Thickness:** 1.3 month
- **Outside Diameter:** 4 inches
- **Product Dimensions:** 300"L x 4"W
- **UPC:** 736783800291

## Images

![VIVOSUN 4 Inch Flex Aluminum Ducting, 25 Ft Air Duct with 2 Clamps, 2-Pack - Image 1](https://m.media-amazon.com/images/I/81E2nw7ijyL.jpg)
![VIVOSUN 4 Inch Flex Aluminum Ducting, 25 Ft Air Duct with 2 Clamps, 2-Pack - Image 2](https://m.media-amazon.com/images/I/81K0gbWhcPL.jpg)
![VIVOSUN 4 Inch Flex Aluminum Ducting, 25 Ft Air Duct with 2 Clamps, 2-Pack - Image 3](https://m.media-amazon.com/images/I/81Hp2yD+WcL.jpg)
![VIVOSUN 4 Inch Flex Aluminum Ducting, 25 Ft Air Duct with 2 Clamps, 2-Pack - Image 4](https://m.media-amazon.com/images/I/81vvQYMRwiL.jpg)
![VIVOSUN 4 Inch Flex Aluminum Ducting, 25 Ft Air Duct with 2 Clamps, 2-Pack - Image 5](https://m.media-amazon.com/images/I/91WQaerM4OL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Durable, flexible ducting that works great
*by P***P on June 26, 2026*

This 4-inch VIVOSUN aluminum duct has been a great addition to my ventilation setup. The 25-foot length gives plenty of room to route it where needed, and it is flexible enough to work around corners without being difficult to install. It feels well made with its multi-layer construction and has held up well in use. The duct keeps its shape nicely, connects securely to standard 4-inch fittings, and works well for HVAC, exhaust, or 3D printer ventilation projects. Overall, a durable and versatile duct at a good value. Very happy with it.

### ⭐⭐⭐⭐⭐ Great duct
*by S***H on December 27, 2025*

This 4-inch aluminum foil ducting is extremely well made and far sturdier than I expected. The aluminum layering feels thick and reinforced, not cheap or flimsy, and it holds its shape perfectly once installed. I really like the black outer layer—it looks clean, professional, and helps with light control compared to standard silver ducting. The hose is flexible enough to route easily, yet strong enough that it doesn’t collapse or kink. The 8-foot length was perfect for my setup, and the included clamps fit snug and secure with no air leaks. Overall, this is a high-quality, heavy-duty vent hose that feels reliable and built to last. Great for HVAC, dryer vents, or exhaust fan systems. I would absolutely buy this again and recommend it to anyone looking for durable, trustworthy ducting.

### ⭐⭐⭐⭐⭐ This worked better than I expected.
*by J***E on June 4, 2026*

Even though my opening was a bit bigger at about 6.5”, it still stretched to fit without ripping or tearing. It held its shape well and stayed flexible the whole time. The material feels solid enough for regular use and didn’t feel like it was going to fall apart when stretched. One thing to keep in mind is heat. If you’re moving hot air through it, the duct itself will let heat escape, so wrapping it with insulation on the outside would help keep more heat in. Overall, it’s a good, reliable duct for basic venting jobs.

## Frequently Bought Together

- VIVOSUN 2-Pack 4 Inch 25 Feet Flex Air Aluminum Ducting Dryer, Flexible Vent Hose for HVAC Ventilation with Four 4 Inch Stainless Steel Clamps
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-23*