---
product_id: 242607527
title: "TerraBloom 4 Inch Aluminum Flex Duct - 25 FT Long, Flexible Ducting with 2 Clamps, 3 Layer HVAC Ventilation Air Hose - Great for Dryer, Grow Tent, Green Houses, Household HVAC Venting"
brand: "terrabloom"
price: "₨29499"
currency: LKR
in_stock: true
reviews_count: 5
category: "Terra Bloom"
url: https://www.desertcart.lk/products/242607527-terrabloom-4-inch-aluminum-flex-duct-25-ft-long-flexible
store_origin: LK
region: Sri Lanka
---

# 25 FT length for versatile reach Flexible & easy clamp installation 3-layer fire-retardant durability TerraBloom 4 Inch Aluminum Flex Duct - 25 FT Long, Flexible Ducting with 2 Clamps, 3 Layer HVAC Ventilation Air Hose - Great for Dryer, Grow Tent, Green Houses, Household HVAC Venting

**Brand:** terrabloom
**Price:** ₨29499
**Availability:** ✅ In Stock

## Summary

> 🌬️ Flex your airflow game with TerraBloom’s 25-foot powerhouse!

## Quick Answers

- **What is this?** TerraBloom 4 Inch Aluminum Flex Duct - 25 FT Long, Flexible Ducting with 2 Clamps, 3 Layer HVAC Ventilation Air Hose - Great for Dryer, Grow Tent, Green Houses, Household HVAC Venting by terrabloom
- **How much does it cost?** ₨29499 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/242607527-terrabloom-4-inch-aluminum-flex-duct-25-ft-long-flexible)

## Best For

- terrabloom enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Use Masterpiece:** Ideal for dryers, grow tents, greenhouses, bathrooms, and any HVAC venting challenge you face.
- • **Custom Fit for Every Space:** Cut to size with ease, adapting perfectly to your unique ventilation needs.
- • **Extended Reach, Zero Limits:** A full 25 feet of flexible ducting to conquer any HVAC layout or grow tent setup.
- • **Effortless Setup, Instant Airflow:** Includes 2 stainless steel clamps for quick, secure installation—no extra tools needed.
- • **Built to Last, Designed to Protect:** Triple-layer construction with heat-reflective aluminum, PET coating, and steel helix for unmatched durability and fire resistance.

## Overview

The TerraBloom 4 Inch Aluminum Flex Duct offers a robust 25-foot length of flexible, 3-layer HVAC ducting designed for superior durability and fire resistance. Its heat-reflective aluminum core, PET coating, and steel wire helix ensure long-lasting shape retention and protection. Easy to install with included stainless steel clamps, this duct is perfect for a wide range of ventilation needs—from household dryers to grow tents and greenhouses—allowing custom cuts for tailored airflow solutions.

## Description

Product Specifications: 4" Diameter and 25'Â Length Flexible 2 Layer Design (Aluminum + Plastic Layer) Easy Installation with 2 Stainless SteelÂ Clamps (Included) Safe Carton Packaging Product Description: This Flexible Aluminum Air Duct is designed for use with 4" inline fans for a wide range of household and horticultural applications. It can be used to transfer air in and out of the rooms, grow tents, attics, basements etc. The duct's Â flexible design and included clamps make this product easy to install for your particular needs.Â

Review: This item worked perfect for me. It's much better than a solid duct. I used a 4" hole saw and the flexible duct will go through with no problems. When i tried to fit a solid duct through the same hole...not a chance. I purchased this for a bathroom fan and i;m very happy with it. Easy to pull and to make any necessary turn. The price was competitive as I tried multiple other web sites.
Review: Whoever put the dryer vent into the foundation put it on the other side of our house, so the ductwork under the house has to run approximately 27 feet. The dryer ductwork that runs under the house is broken, it's the middle of winter, wet under the house and to get under the house, someone must come into the house to get to the trap door that opens to the underside of the house (not with COVID running rampant). And the clothes are not drying properly. Lots of lint and it takes 3 hours to dry a small load. We needed extra long duct work so my husband could run it from the dryer vent out the back garage door through an old cat door. Yes! We have to step carefully down into the garage for a few months until someone can come into the house so as not to step on the hose, but the clothes are now drying properly. I'm not familiar with regular ductwork for dryers but my husband says this is super thin and fragile, but it's working as designed (by my husband). Oh! and it came the next day in plenty of time to install it.

## Features

- 4" by 25 FEET DUCT: This is a value size ducting which is 25 feet long when fully extended. Plenty of length to run an air line to remote HVAC registers, build an intake and exaust ventilation inside your grow room or any other air circulation needs
- 3-LAYER TOUGH: Keep your ventilation system free of rips and pin holes. This ducting is built with a layer of Heat Reflective Fire-Retardant Aluminum, Covered with PET for additional endurance and Steel Wire Helix to preserve the Ducts shape
- FLEXIBLE AND EASY TO USE: Our 4 Inch Duct is super flexible and easy to install, it will slide right on your Duct Fan, Vent Exhaust, Carbon Filter or Light Reflector. We include a pair of 4 Inch Clamps to make the installation a breeze
- 4" DIAMETER WITH ADJUSTABLE LENGTH: This Ventilation Duct is 4 Inches in diameter and comes in one 25 Feet Long Piece, which can be cut into as many pieces as you need using a wire cutter and a paper knife
- VARIETY OF APPLICATIONS: Our Ducting Is suitable for any Heating Ventilation & Air Conditioning (HVAC) Purposes. It will move and deliver air in Kitchens (cooking exhaust), Green Houses and Grow Rooms (Air Circulation, Intake, Exhaust and Light Fixture Cooling), Bathrooms (Smell and Moisture Exhaust), Dryer Rooms, Grow Tents and other applications you have in mind

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01F7Q5VIM |
| Assembled Diameter | 4 Inches |
| Batteries Required? | No |
| Batteries included? | No |
| Colour | Silver |
| Customer Reviews | 4.3 4.3 out of 5 stars (258) |
| Cutting Diameter | 4 Inches |
| Date First Available | 5 May 2016 |
| Included Components | 2 Stainless Steel Clamps |
| Installation method | Clamp On |
| Item Package Quantity | 1 |
| Item Weight | 630 g |
| Item model number | TBD-425 |
| Manufacturer | TerraBloom |
| Material | Aluminum + Plastic Layer |
| Part Number | TBD |
| Size | 4" X 25 FT (SILVER) |

## Images

![TerraBloom 4 Inch Aluminum Flex Duct - 25 FT Long, Flexible Ducting with 2 Clamps, 3 Layer HVAC Ventilation Air Hose - Great for Dryer, Grow Tent, Green Houses, Household HVAC Venting - Image 1](https://m.media-amazon.com/images/I/41cJO1UXqoL.jpg)
![TerraBloom 4 Inch Aluminum Flex Duct - 25 FT Long, Flexible Ducting with 2 Clamps, 3 Layer HVAC Ventilation Air Hose - Great for Dryer, Grow Tent, Green Houses, Household HVAC Venting - Image 2](https://m.media-amazon.com/images/I/41mURznrSoL.jpg)
![TerraBloom 4 Inch Aluminum Flex Duct - 25 FT Long, Flexible Ducting with 2 Clamps, 3 Layer HVAC Ventilation Air Hose - Great for Dryer, Grow Tent, Green Houses, Household HVAC Venting - Image 3](https://m.media-amazon.com/images/I/41n7bfaJaxL.jpg)
![TerraBloom 4 Inch Aluminum Flex Duct - 25 FT Long, Flexible Ducting with 2 Clamps, 3 Layer HVAC Ventilation Air Hose - Great for Dryer, Grow Tent, Green Houses, Household HVAC Venting - Image 4](https://m.media-amazon.com/images/I/515w6sxBm4L.jpg)
![TerraBloom 4 Inch Aluminum Flex Duct - 25 FT Long, Flexible Ducting with 2 Clamps, 3 Layer HVAC Ventilation Air Hose - Great for Dryer, Grow Tent, Green Houses, Household HVAC Venting - Image 5](https://m.media-amazon.com/images/I/51L9wfgb3CL.jpg)

## Questions & Answers

**Q: What's the maximum temperature it can handle?**
A: probably more than you can generate..I use for my dryer and it works fine.  Even on high heat for max drying.

**Q: Is this hose water tight.**
A: It should be air tight but these kinds of hoses are somewhat fragile and thin. And it would not be difficult to acdcidentally punch a hole in the side of it. I  wrapped mine with heavy packing tape  to make it a little more durable.

**Q: can this be used in the bathroom vent fan that draws out moisture?**
A: Hi Jerilynn,Yes, this aluminum duct will work well with the bathroom vent exhaust fan. This package contains 25 ft of ducting when fully extended, so you'll need to cut it to your length with a pair of metal snips (easy to do). Please make sure that you are buying the correct diameter of the ducting that would fit your vent fan, they typically come in 4 inch and 6 inch diameter.Best regards,TerraBloom

**Q: Can I use this to vent exhaust from natural gas water heater?**
A: No, you need a rigid metal pipe.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 7 April 2017*

This item worked perfect for me. It's much better than a solid duct. I used a 4" hole saw and the flexible duct will go through with no problems. When i tried to fit a solid duct through the same hole...not a chance. I purchased this for a bathroom fan and i;m very happy with it. Easy to pull and to make any necessary turn. The price was competitive as I tried multiple other web sites.

### ⭐⭐⭐⭐⭐ Review
*by A***M on 22 December 2020*

Whoever put the dryer vent into the foundation put it on the other side of our house, so the ductwork under the house has to run approximately 27 feet. The dryer ductwork that runs under the house is broken, it's the middle of winter, wet under the house and to get under the house, someone must come into the house to get to the trap door that opens to the underside of the house (not with COVID running rampant). And the clothes are not drying properly. Lots of lint and it takes 3 hours to dry a small load. We needed extra long duct work so my husband could run it from the dryer vent out the back garage door through an old cat door. Yes! We have to step carefully down into the garage for a few months until someone can come into the house so as not to step on the hose, but the clothes are now drying properly. I'm not familiar with regular ductwork for dryers but my husband says this is super thin and fragile, but it's working as designed (by my husband). Oh! and it came the next day in plenty of time to install it.

### ⭐⭐⭐⭐ Review
*by J***G on 4 February 2017*

Used with a in-duct fan for a fume extractor while welding. Nice and long. Hooked it from a window up to ceiling and over to my welding table. Works great. Material may be a little too delicate for rough everyday use, but for my purpose it works fine.

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-23*