Prime Day deals end soon! View Deals
Search  for anything...

4" 190 CFM Inline Duct Fan with E12 Speed Controller, Ventilation Exhaust Fan for Cooling Booster, Grow Tents, Hydroponics

  • Based on 0 reviews
Condition: New
Checking for the best price...
$19.98 Why this price?
Prime Day Deal · 25% off was $26.59

Buy Now, Pay Later


As low as $4 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon

Arrives Sunday, Jun 28
Order within 17 hours and 50 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Size: 4"+Fan Only


Features

  • Energy-Efficient Ventilation: The inline duct fan combines the features of axial , delivering powerful airflow up to 190 CFM with a fan speed of 2300 RPM. It efficiently circulates air while maintaining low energy consumption, making it ideal for various ventilation needs.
  • Low Noise Level: Designed for quiet operation, the fan operates at less than 30 dB, ensuring minimal disturbance. The durable fan blades and high-quality AC motor contribute to smooth and powerful airflow while keeping noise levels low.
  • Adjustable Speed Control: Equipped with a stepless speed controller, the inline duct fan allows users to easily adjust the airflow speed to meet specific ventilation requirements. This feature ensures optimal air circulation for different environments.
  • Easy Installation and Versatility: The compact and lightweight design, makes the fan easy to install in small spaces. It is suitable for a wide range of applications, including grow tents, kitchens, basements, and electronic equipment rooms.
  • Safety and Durability: The inline duct fan is equipped with an automatic reset function to prevent overheating. The flame-retardant electrical junction box enhances safety, while the detachable housing, impeller, and blades simplify cleaning and maintenance, ensuring long-lasting performance.

Description

MELONFARM 4" 190 CFM Inline Duct Fan with E12 Speed Controller, Ventilation Exhaust Fan for Cooling Booster, Grow Tents, Hydroponics

Brand: MELONFARM


Power Connector Type: 4-Pin


Cooling Method: forced air


Compatible Devices: Desktop, Graphic Cards, Projector, Receiver


Noise Level: 30 Decibels


Material: Plastic


Maximum Rotational Speed: 2300 RPM


Air Flow Capacity: 190 Cubic Feet Per Minute


Manufacturer: MELONFARM


Number of Items: 1


Power Connector Type: 4-Pin


Cooling Method: forced air


Compatible Devices: Desktop, Graphic Cards, Projector, Receiver


Noise Level: 30 Decibels


Maximum Rotational Speed: 2300 RPM


Air Flow Capacity: 190 Cubic Feet Per Minute


Material Type: Plastic


Brand Name: MELONFARM


Manufacturer: MELONFARM


Number of Items: 1


Model: 4" Duct Fan


Part Number: MFDF4TALL


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • The thing works.
Size: 4"+Fan Only
Works like a dream. Bit louder than I thought it would be as it’s advertised as quiet. But they are all loud so who cares. It’s good, and works fine.
Reviewed in the United States on October 21, 2025 by Cher Strong

  • Great bye for the money works good for small tents
Size: 4"+Fan Only
Works well as it should. The Speed controllers get a little hot.
Reviewed in the United States on January 15, 2026 by Brad Knight

  • No quality control.
Size: 4"+Fan Only
Poorly designed and carelessly constructed, with apparently no quality control. The motor element inside was loose so that the fan blades rubbed on the sides, making a loud and annoying sound. Don't know if this was a problem on all of these units, but I wouldn't take a chance when other similar items are available. ... show more
Reviewed in the United States on July 15, 2025 by Alaskan Customer

  • Intake fan
Size: 4"+Fan Only
Got this for my air intake unboxed it looks and feels to be made well the ports are to size has plenty of power for my 2x4 veg tent adjustable speed settings it has some noise that what's to be expected
Reviewed in the United States on June 7, 2025 by Ron w

  • Ok if your on a tight budget.
Size: 4"+Fan Only
Ok for the price but I'd recommend spending a little more on a higher quality fan. It's noisy and not very powerful.
Reviewed in the United States on September 21, 2025 by William

  • Melon farms exhaust fan
Size: 4"+Fan Only
This exhaust fan is very functional low noise level very easy to install anyone can do it. It's durable and low power consumption
Reviewed in the United States on February 4, 2026 by Matthew Moore

  • fantastic vent fan
Size: 4"+Fan Only
Great product, moves a lot of air
Reviewed in the United States on March 12, 2026 by Amazon Customer

  • Variable speed easy set for specific need.
Size: 4"+Fan Only
I got this for my 3d printer to remove fumes thru a window. Nice to have variable speed. Works very well.
Reviewed in the United States on December 22, 2025 by Rick D.

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...