Search  for anything...

4 Inch Inline Duct Fan with Speed Controller, Upgraded Inline Fans High-Efficiency Exhaust Duct Fan, Low Noise HVAC Ventilation in Basement Bathroom Workshop Attic Grow Tent

  • Based on 19 reviews
Condition: New
Checking for the best price...
$22.99 Why this price?
Labor Day Deal · 23% off was $29.99

Buy Now, Pay Later


As low as $5 / 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, Zip, Apple Pay, and Google Pay. 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 Thursday, Sep 10
Order within 18 hours and 57 minutes
Available payment plans shown during checkout

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

Size: 4 Inch Inline Duct Fan ZFP124A03


Features

  • [Quiet & Efficient Airflow] This 4-inch inline duct fan delivers powerful airflow up to 183 CFM while operating as quietly as 24 dB. Featuring stepless speed control, it allows precise adjustment for optimal performance and noise balance. Perfect for quickly removing bathroom humidity, grow tent odors, and stale attic air. Comes with a 5 ft power cord for fast and easy installation.
  • [Pure Copper DC Motor & High-Efficiency Airflow]Featuring a 100% pure copper DC motor, this inline duct fan spins at 5000RPM with <20K temperature rise. Compared to aluminum motors, its 30% better heat dissipation and 50% lower energy use make this inline exhaust fan durable and reliable for heavy-duty needs.
  • [Durable, Safe & Versatile Use] Built with sturdy ABS housing and PBT blades, this 4-inch inline duct fan is waterproof (IPX4), durable, and resistant to deformation. Equipped with a wide-voltage power adapter, low-voltage safety system, and stall plus overheat protection, it ensures stable and secure performance. Ideal for quietly ventilating grow rooms, bathrooms, kitchens, attics, basements, and workshopsenhancing airflow and comfort effortlessly.
  • [Easy Installation & Multi-Scene Ventilation] This 4-inch inline duct fan can be easily mounted on walls, windows, or ceilings with simple installation. Compact yet powerful, its ideal for use with 3D printers, laser engravers, fog machines, kitchen cabinets, fireplace vents, bathroom ceilings, garages, greenhouses, and RV ventilation. With a 3.86-inch fan size that perfectly fits standard 4-inch ducts, it efficiently removes heat, moisture, and odors to keep the air fresh and well-circulated.
  • [High Quality & 24/7 Support Inline Fan]Tested to strict standards, this 4 inline fan includes a 2-year warranty and 24/7 customer service. No need to returncontact us for any issues! (Note: Duct not included.)

Description

4 Inch Inline Duct Fan 4 Inch Inline Duct Fan 4 Inch Inline Duct Fan 4 Inch Inline Duct Fan 4 Inch Inline Duct Fan 4 Inch Inline Duct Fan ONVEAN, your trusted "Strong Vent, Fresh Breath" partner, specializes in exhaust fan innovation. With a team of expert professionals, we pour passion into every product for outstanding performance and reliability. Strictly overseeing R&D to production, we help you bid farewell to stagnant air. Our powerful ventilation turns any space into a haven of fresh air – your go-to solution for all ventilation needs. Visit the Store

Brand: ONVEAN


Color: Black


Electric fan design: Exhaust Fan


Power Source: Corded Electric


Style: Inline


Product Dimensions: 3.86"D x 7.28"W x 3.86"H


Room Type: Attic, Bathroom, Garage, Kitchen, WC


Special Feature: stepless speed and powerful airflow


Recommended Uses For Product: Exhausting, Ventilating


Mounting Type: Wall Mount/Ceiling Mount/Window Mount


Power Source: Corded Electric


Room Type: Attic, Bathroom, Garage, Kitchen, WC


Special Features: stepless speed and powerful airflow


Recommended Uses For Product: Exhausting, Ventilating


Mounting Type: Wall Mount/Ceiling Mount/Window Mount


Controller Type: Dial Control


Noise Level: 24 db


Wattage: 8 watts


Air Flow Capacity: 183 cfm


Speed: 5000 rpm


Voltage: 120 volts


Switch Type: Dial Control


Indoor Outdoor Usage: Indoor


Control Method: Push Button


Number of Power Levels: 1


Main Power Connector Type: 2-Pin


Motor Type: Brushless DC Motor


Installation Type: surface_mount


Material: Acrylonitrile Butadiene Styrene


EU Spare Part Availability Duration: 2 years


Color: Black


Electric Fan Design: Exhaust Fan


Style: Inline


Item Dimensions D x W x H: 3.86"D x 7.28"W x 3.86"H


Size: 4 Inch Inline Duct Fan ZFP124A03


Brand Name: ONVEAN


Included Components: 4-Inch with Speed Controller Fan


Model Name: P124


Model Number: P124 Inline Duct Fan


Manufacturer: ONVEAN


Warranty Description: 2 Year Manufacturer


Manufacture Year: 2026


Unit Count: 1 Count


Part Number: P124


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Sep 10

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
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Cute and well constructed
Size: 4 Inch Inline Duct Fan ZFP124A03
Cute and effective. It is smaller than I need but I am using it as a proof of principle. It is well made. Lightweight and versatile. Even though I need a larger one for my need, I am keeping this one since I am so impressed with it. I am confident I will use it elsewhere. To me, that would be a significant endorsement. BTW. This was a genuine purchase and review - I did not receive a free product like several reviews here. Skin in the game so to speak. ... show more
Reviewed in the United States on July 14, 2026 by David Taylor

  • Great air flow. Lightweight. Quiet on low speeds.
Size: 4 Inch Inline Duct Fan ZFP124A03
I made a system to exhaust my hot computer air through my window. I tried using an old pc fan on the window and sealed around with cardboard, and using a dryer duct from my computer to the window fan. I bought this fan and its lightweight, runs very smooth, very quiet on low modes which is already more air speed than the pc fan. It pulls a huge amount of air through the duct and does great. ... show more
Reviewed in the United States on July 3, 2026 by Jonah

  • For the price it's a great blower.
Size: 4 Inch Inline Duct Fan ZFP124A03
All in all it seems like a great fan for the price. Moves a pretty considerable volume of air at full power and isn't very loud. My one complaint is something you should consider if you're wanting to go the cheap route (with this unit) for something like an attic blower : the power cord and control module are are integrated. There's no clean way to pass the control module into a room in your house without cutting a big hole in the top plate and wall because the control box will require it to pass through. Your only work around, which I'm going to attempt, is to splice in a longer run of wire with push pin connectors that I fish through a smaller hole or outlet cover. Keep in mind, this unit was clearly not made for this, and you can buy a pricier model that has a remote in which case this wouldn't be an issue. But it would be really easy for them to add a plug to couple the controller with the power cord so you can pass the wire through a small hole, and then connect the controller head and power. ... show more
Reviewed in the United States on July 9, 2026 by Matthew Smith

  • It's okay for a small areas
Size: 4 Inch Inline Duct Fan ZFP124A03
Will work fine in my small tent
Reviewed in the United States on July 7, 2026 by Jeff Shelton

  • Good fan
Size: 4 Inch Inline Duct Fan ZFP124A03
Nice little fan. Works great for venting fumes from my resin
Reviewed in the United States on July 5, 2026 by R. Carver

  • Works great!
Size: 4 Inch Inline Duct Fan ZFP124A03
Lots of adjustability. Works good with my 3d printer
Reviewed in the United States on July 6, 2026 by Frank V. Caltabiano

  • Trash
Size: 4 Inch Inline Duct Fan ZFP124A03
Just got mine and it turns off on its own every few minutes. I check, it's supposed to be on. I turn it off and on a few times to make it turn on. Then it shuts off after a couple of minutes. Not gonna return it. Just throwing it in the trash where it belongs. WASTE OF MONEY
Reviewed in the United States on July 1, 2026 by Robert nuckolls

  • Reprehensible
Size: 4 Inch Inline Duct Fan ZFP124A03
Yeah the advertised CFM is either just a blatant lie or I got a faulty unit. Everything costs 3x what it used to and nothings made to last.
Reviewed in the United States on July 21, 2026 by Review Avenue

Can't find a product?

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