TerraBloom 4 Ducting Review – Flex Aluminum Hose for HVAC Ventilation

Hey everyone, today I’ll be sharing my thoughts on the TerraBloom Flexible 4 Inch Ducting – Black 25 Feet Flex Aluminum Duct with 2 Clamps. I recently had the chance to try it out and here’s what I found.

TerraBloom Flexible 4 Inch Ducting

Pros and Cons

What We Liked

  • I really appreciated the added durability of this ducting. The extra layer of PVC outside prevented any accidental tears or rips, unlike other thin aluminum ducting products I’ve used in the past.
  • The 4-layer protection of this ducting was impressive. It worked well in keeping my ventilation system free of rips and leaks.
  • Installation was a breeze thanks to the flexibility of this ducting. It easily slid onto my Duct Fan, Vent Exhaust, Carbon Filter, and Light Reflector without any issues.
  • With 25 feet of length, I had plenty of ducting to work with. Cutting it into multiple pieces was simple thanks to a wire cutter and paper knife.
  • This ducting is versatile and suitable for various HVAC purposes, including kitchens, greenhouses, grow rooms, bathrooms, dryer rooms, and more.

What Can Be Improved

  • While overall it performed well, I did encounter some issues with the black coating sticking to itself on the creases. This caused certain sections to rip apart, making them unusable. However, this only affected a small portion of the ducting for my specific needs.
  • I also found that the delivery was delayed, which was unfortunate as I needed it on the day it was supposed to arrive. However, the quality and features of this ducting make up for the inconvenience.

Quick Verdict

In conclusion, the TerraBloom Flexible 4 Inch Ducting – Black 25 Feet Flex Aluminum Duct with 2 Clamps is a durable and versatile solution for your ventilation needs. Its added PVC layer provides extra durability, and the 4-layer protection ensures a leak-free experience. Installation is a breeze, and the adjustable length allows for customization. While I encountered a minor issue with the black coating sticking, it didn’t affect the overall performance. If you’re looking for a reliable ducting solution, I highly recommend checking out this product.

Check out the TerraBloom Flexible 4 Inch Ducting on Amazon

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Unboxing – What’s Inside?

I recently purchased the TerraBloom Flexible 4 Inch Ducting – Black 25 Feet Flex Aluminum Duct with 2 Clamps – 4 Layer HVAC Ventilation Air Hose from Amazon in the USA. The delivery was prompt and the product arrived within a few days.

Inside the box, I found the following items:

  • TerraBloom Flexible 4 Inch Ducting – Black 25 Feet
  • 2 Clamps


The specifications of the TerraBloom Flexible 4 Inch Ducting – Black 25 Feet are as follows:

  • Brand: TerraBloom
  • Manufacturer: TerraBloom
  • Product Dimensions: 300L x 4W
  • Installation Type: Self-Adhesive
  • Material: Aluminum
  • Color: Black
  • Date First Available: January 12, 2018


The user guide provided with the TerraBloom Flexible 4 Inch Ducting proved to be helpful in setting up and installing the product. It provided clear instructions on how to use the self-adhesive installation method and ensure proper ventilation in grow tents, dryer rooms, and house vent register lines. You can find the user guide here.

Features – What We Found

Durable Flex Duct

The TerraBloom Flexible 4 Inch Ducting is constructed with an extra layer of PVC outside for added durability. This eliminates frustration from accidental rips and tears that can occur in thin exposed aluminum ducting products. The 4 vent hose is designed to work effectively for various applications including dryers, duct fans, grow tents, and any situation where air needs to be moved from one point to another.

4-Layer Protection

Your ventilation system will be kept free of rips, pin holes, and leaks with this 4 inch duct hose. It features 4 layers of protection to ensure optimal performance. Under the white PVC layer, the ducting is built with 2 layers of aluminum foil, along with a layer of PET and steel wire helix to preserve its shape. This multi-layer design provides excellent durability and resistance against damage.

Flexible & Easy to Use

The TerraBloom 4 inch air ducting is super flexible and easy to install. It can slide right on to your duct fan, vent exhaust, carbon filter, or light reflector. The package also includes a pair of 4-inch clamps, making the installation process a breeze. Whether you are a professional or a DIY enthusiast, this ducting is user-friendly and can be easily adjusted to fit your specific needs.

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Adjustable Length

This 4 inch flexible duct comes in one 25-foot long piece, which can be cut into as many pieces as you need using a wire cutter and a paper knife. This adjustable length feature allows you to customize the ducting to fit the specific dimensions of your setup. It offers flexibility and convenience, ensuring that you can achieve the perfect fit for your ventilation system.

Versatile Applications

The TerraBloom 4-inch ducting is suitable for a wide range of Heating Ventilation & Air Conditioning (HVAC) purposes. It is designed to effectively move and deliver air in various environments including kitchens (cooking exhaust), greenhouses and grow rooms (air circulation, intake, exhaust, and light fixture cooling), bathrooms (odor and moisture exhaust), dryer rooms, grow tent ducting, and many other applications you may have in mind.

Our Review, Score and More

Our Score: 93.0

I recently purchased the TerraBloom Flexible 4 Inch Ducting and I have been extremely satisfied with its performance. The extra layer of PVC outside provides added durability, ensuring that I don’t have to worry about any rips or tears. This ducting has been perfect for my dryer, duct fan, and grow tent, allowing me to easily move air from one point to another.

What sets this ducting apart is its 4 layer protection. Not only does it keep my ventilation system free of rips and resistant to leaks, but it also preserves its shape thanks to the layers of aluminum foil, PET, and steel wire helix. Installation was a breeze, as the ducting is super flexible and comes with a pair of clamps. I was able to easily slide it onto my duct fan, vent exhaust, and carbon filter.

Overall, the TerraBloom Flexible 4 Inch Ducting has exceeded my expectations. Its durability, flexibility, and ease of use make it a must-have for any HVAC purposes. I highly recommend this product to anyone in need of reliable and efficient air ducting.

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Still Looking? Checkout These Alternatives

If you’re considering purchasing the TerraBloom Flexible 4 Inch Ducting, but still have doubts, let me introduce you to some alternative products that might meet your needs even better. These alternate options offer similar features and functionality, providing you with reliable ventilation solutions for your specific requirements.

TerraBloom Flexible 4 Inch Ducting – Black 25 Feet Flex Aluminum Duct with 2 Clamps

The TerraBloom Flexible 4 Inch Ducting is a fantastic choice for grow tents, dryer rooms, and house vent register lines. However, if you’re looking for other alternatives, you can consider the following:

  • AC Infinity Flexible 4-Inch Aluminum Ducting: This heavy-duty four-layer protection ducting is eight feet long, making it ideal for heating, cooling, ventilation, and exhaust purposes. It provides durable and efficient airflow while maintaining temperature control. You can find more information about it here.
  • AC Infinity Flexible 6-Inch Aluminum Ducting: If you need a larger diameter, this six-inch ducting from AC Infinity is a great option. With the same heavy-duty four-layer protection and eight feet length, it offers excellent performance in heating, cooling, ventilation, and exhaust systems. Find more details here.

If you’re specifically interested in ventilation fans for your hydroponics grow tent, you can consider the following alternatives:

  • VIVOSUN D4 4 Inch 195 CFM Inline Duct Ventilation Fan HVAC Vent Blower: This ventilation fan from VIVOSUN delivers high airflow and is perfect for boosting ventilation in grow tents. With its compact design and powerful performance, it ensures optimal growing conditions. Learn more about it here.
  • VIVOSUN T4 4 Inch 190 CFM Inline Duct Ventilation Fan with Variable Speed Controller: This VIVOSUN fan offers variable speed control, allowing you to maintain precise airflow and temperature control in your grow tent. It’s designed for quiet operation and enhanced efficiency. Find it here.

By exploring these alternate products, you can compare their features, prices, and customer reviews to make an informed decision. Each option offers its own set of advantages, so consider your specific needs and preferences when making your choice.