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Sold by: TerraBloom
Sold by: TerraBloom
(3096 ratings)
99% positive over last 12 months
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TerraBloom 4" (100mm) Inline Fan - 100 CFM, Metal Duct Fan, ETL Listed, Pre-Wired 6 FT Grounded Cord - Great For Grow Tent Exhaust and Intake, Register Booster For 4 Inch Ducts

4.0 4.0 out of 5 stars 320 ratings

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4" Booster Fan (100 CFM)

Purchase options and add-ons

Controller Type
Remote Control
Material
Metal

Additional Details

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Customer ratings by feature

Easy to install
4.6 4.6
Value for money
4.3 4.3
Noise level
4.1 4.1

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TerraBloom 4" (100mm) Inline Fan - 100 CFM, Metal Duct Fan, ETL Listed, Pre-Wired 6 FT Grounded Cord - Great For Grow Tent Exhaust and Intake, Register Booster For 4 Inch Ducts
TerraBloom 4" (100mm) Inline Fan - 100 CFM, Metal Duct Fan, ETL Listed, Pre-Wired 6 FT Grounded Cord - Great For Grow Tent Exhaust and Intake, Register Booster For 4 Inch Ducts
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Price$20.99$16.99$23.99$24.99$29.99$22.99
Delivery
Get it as soon as Tuesday, Mar 26
Get it as soon as Wednesday, Mar 27
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Customer Ratings
Easy to install
4.6
5.0
4.7
4.7
4.4
4.3
Noise level
4.1
4.0
3.6
4.0
3.3
4.0
Value for money
4.3
4.5
4.4
4.0
4.1
Suction power
3.6
3.3
4.4
4.1
Sold By
TerraBloom
Amazon.com
Amazon.com
HGinline
TerraBloom
Amazon.com
material
Metal
Plastic, Aluminum
Plastic
Metal
controller type
Remote Control
Button Control
Button Control
Remote Control
wattage
18 watts
12 watts
15 watts
6 watts
37 watts
voltage
120 volts
240 volts
120 volts
number of blades
10
5
5
weight
1.65 pounds
3.02 pounds
2.44 pounds

From the brand

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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TerraBloom 4" (100mm) Inline Fan - 100 CFM, Metal Duct Fan, ETL Listed, Pre-Wired 6 FT Grounded Cord - Great For Grow Tent Exhaust and Intake, Register Booster For 4 Inch Ducts


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Product Description

TerraBloom's Commitment to Customers

At TerraBloom we are focused on providing high-quality air ventilation and indoor garden products at affordable prices. Our ventilation products are designed and tested for performance in a wide range of household and horticultural applications. With years of experience behind our belts, we understand the importance of proper airflow and strive to enable our customers to achieve their ventilation goals in the most efficient way possible.

TerraBloom 4 Inch Inline Duct Fan Description

TerraBloom 4 inch inline fan is manufactured from the lightweight paint coated steel and can be used as a booster fan to ventilate grow rooms, basements, attics, etc. Our booster fan fits into a standard 4 inch duct and comes pre-wired 6 foot grounded cable.

At the maximum speed in straight ducts this inline fan moves 100 CFM of air per minute, which can be reduced by up to 30% using TerraBloom Variable Fan Speed Controller (sold separately). Reducing the maximum speed of this inline fan with a controller significantly reduces the noise produced by the air flow. Max temperature in the operating environment for this inline fan is 140F. This fan is not waterproof and not suitable for outdoors applications.

Warranty

We stand behind our products and provide 1 Year Warranty. Please contact us through Amazon for Warranty Service, and we will process it for you without extra hassle.

Disclaimer

Buyer acknowledges that by purchasing TerraBloom products, buyer has special knowledge on installation and use of the product or has consulted a professional on the productâs installation and use. As with any electrical appliance, buyer should exercise caution at all times when operating this fan.

Customer reviews

4 out of 5 stars
4 out of 5
320 global ratings

Customers say

Customers like the performance, noise level and quality of the electric fan. For example, they mention it works well, is quiet and reliable. Some appreciate the compactness and cooling. That said, opinions are mixed on airflow, value, and efficiency.

AI-generated from the text of customer reviews

47 customers mention41 positive6 negative

Customers like the performance of the fan. For example, they mention it works well, is quiet, and performs admirably. That said, some say the product itself is fine but depending on your application it may seem noisy.

"...Works great!" Read more

"...It's not that attractive, but it's behind furniture!Works like a charm!..." Read more

"...The product itself is fine but depending on your application it may seem noisy...." Read more

"Product works well, although I haven't put it in to long term use yet. INSPECT WIRING BEFORE TURNING ON!!!..." Read more

45 customers mention38 positive7 negative

Customers like the noise of the fan. Some mention it's quiet enough, while others say it'll be too loud in a family room or bedroom. However, most find the soothing sound of rushing air to be relaxing.

"...The fan is very quiet at low speed but you do hear it humming when it is on full power but it’s not too bad...." Read more

"...in your grow tent or small grow space, it's perfect, and it is extremely quiet. I have to check it to make sure that it is actually running...." Read more

"seems well made, quiet, but certainly NOT 100 CFM air flow...." Read more

"...Quiet, but wimpy...." Read more

32 customers mention27 positive5 negative

Customers like the quality of the fan. They say it is reliable, well built, and has a strong steel housing. Some customers also mention that the fan itself seems decent enough quality. Overall, most are happy with their purchase and recommend it to others.

"It works and seems to be made well but the output is just ok. I didn't want a whole lot of power anyway so I bought a rheostat...." Read more

"seems well made, quiet, but certainly NOT 100 CFM air flow...." Read more

"...The fan itself seems decent enough quality, so I'm still giving it 3 stars...." Read more

"My first impression was that the housing was a much better quality thank I expected for the price...." Read more

6 customers mention6 positive0 negative

Customers like the compactness of the electric fan. They mention it's small and light weight.

"...The one good thing is that it's pretty light, so depending on your application, that might be exactly what you need." Read more

"...It is durable,has excellent electronics, compact, quite and best of all it keeps the motor very cool" Read more

"Exactly what I needed to vent a laundry room. Quiet, small (only about 8 inches) and sturdy enough to have braces screwed onto it...." Read more

"...The product is high quality for a small price and has a small footprint. Would recommend and would buy again." Read more

6 customers mention6 positive0 negative

Customers like the cooling of the fan. For example, they say it's perfect for cooling a room and bringing in fresh air. Some mention that it can be used with a pluggable temperature control or a speed control.

"...This will help bring in cooler outside air and provide positive air pressure inside a small 2'x4' tent...." Read more

"...has excellent electronics, compact, quite and best of all it keeps the motor very cool" Read more

"...Along with it being plug included It can be used with a pluggable temperature control. or a pluggable speed control." Read more

"...I have not installed it yet, but I am sure it will cool my drill press motor quite well! Thank you for a well built product." Read more

44 customers mention29 positive15 negative

Customers are mixed about the airflow of the fan. Some mention that it adds a great boost to the air flow in their duct work, while others say that it has almost zero air flow.

"...But if everything else is the same I’d have to say it’s a pretty good fan...." Read more

"...This will help bring in cooler outside air and provide positive air pressure inside a small 2'x4' tent...." Read more

"...drag by itself unpowered - but when powered on it caused a significant reduction in flow...." Read more

"...For my purpose this fan moves sufficient amounts of air to keep the plants happy and healthy. That's all that counts...." Read more

23 customers mention14 positive9 negative

Customers are mixed about the value of the fan. Some mention it's a high quality fan for the price, while others say it'll be a waste of money.

"...Problem solved for a very reasonable cost." Read more

"...It does its job, but is inadequate for what I need." Read more

"...1. 5 stars for working exactly how it should and being inexpensive2...." Read more

"Reasonably quiet. Best price for a fan that I could find. Moves enough air out of my 2x2x4 tent but may not be enough for bigger spaces...." Read more

10 customers mention4 positive6 negative

Customers are mixed about the efficiency of the fan. Some mention it has good quiet power, while others say it doesn't have enough power for its weight.

"...Mine has no power and smells terrible. Thanks Osama!" Read more

"...They are quiet, efficient and apparently well made...." Read more

"Not as powerful as i expected but it does work. And is not damaged." Read more

"...I recommend for small indoor grows. 100cfm is sufficient." Read more

Solved A Long Term Problem!
5 Stars
Solved A Long Term Problem!
I have a room (converted porch) that is very hard to heat. I've used electric heaters, which is very expensive. I've considered running a gas line and installing a small gas heater, also very expensive. For a small price, I tried this. I simply pushed it into the vent opening and installed a smart (Alexa) switch to turn on and off. It helps to blow much more air into the room. It's not that attractive, but it's behind furniture!Works like a charm! The temperature in that room is now equal to the rest of the house, and the noise is really no more than from an electric heater.Problem solved for a very reasonable cost.
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Top reviews from the United States

Reviewed in the United States on December 2, 2023
Size: 4" Booster Fan (100 CFM)Verified Purchase
Reviewed in the United States on June 10, 2016
Size: 4" Booster Fan (100 CFM)Verified Purchase
Customer image
5.0 out of 5 stars Inline Fan Gets the Job Done
Reviewed in the United States on June 10, 2016
I originally bought this fan as a 6”, 240 CFM model for $26.00. Not sure why it’s not offered now. But if everything else is the same I’d have to say it’s a pretty good fan. I installed it in the fall and used it throughout the winter for moving hot air from the basement wood-stove to the first floor family room. I hooked it up to a variable speed controller (purchased separately) and that let me set the amount of flow. It was very easy to hook up. It is pre-wired with a plug end. I used aluminum duct tape to attach it to the duct work. The fan is very quiet at low speed but you do hear it humming when it is on full power but it’s not too bad. I almost never ran mine at full power though because it was plenty powerful enough at lower speeds. There is no on/off switch with this unit but if you get a speed control, there is a switch on that. Received it quickly and packed well.
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Customer imageCustomer image
21 people found this helpful
Report
Reviewed in the United States on March 14, 2019
Size: 4" Booster Fan (100 CFM)Verified Purchase
Reviewed in the United States on July 3, 2018
Size: 4" Booster Fan (100 CFM)Verified Purchase
3 people found this helpful
Report
Reviewed in the United States on December 15, 2019
Size: 4" Booster Fan (100 CFM)Verified Purchase
3 people found this helpful
Report
Reviewed in the United States on February 20, 2018
Size: 4" Booster Fan (100 CFM)Verified Purchase
8 people found this helpful
Report
Reviewed in the United States on May 1, 2018
Size: 4" Booster Fan (100 CFM)Verified Purchase
4 people found this helpful
Report
Reviewed in the United States on December 2, 2022
Size: 4" Booster Fan (100 CFM)Verified Purchase

Top reviews from other countries

Translate all reviews to English
Jahaziel Valdés
4.0 out of 5 stars Cumple, fácil de conectar
Reviewed in Mexico on November 17, 2021
Size: 4" Booster Fan (100 CFM)Verified Purchase