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AC Infinity AI-CLS4 28 dBA 4-Inch Inline Duct Fan with Speed Controller - Black
AC Infinity (28563)
98.9% positive feedback
Price:
$89.99
Returns:
60 days returns. Seller pays for return shipping.
Condition:
CLOUDLINE SERIES - S4. A smart inline duct fan designed to quietly ventilate hydroponic grow rooms, boost heating/cooling to rooms, circulate fresh air, exhaust projects, and cool AV closets. Featuring an inline mixed-flow design, the duct fan can maintain airflow even in high static pressure applications.
- Buy It NowCLOUDLINE PRO S4, Inline Duct Fan 4” Cooling Ventilation Exhaust Grow Tents
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About this product
Product Identifiers
BrandAC Infinity
MPNAI-CLS4
Ean0819137020290
GTIN0819137020290
UPC0819137020290
ModelCLOUDLINE S4
eBay Product ID (ePID)21033925592
Dimensions
Weight564lbs.
Additional Product Features
Custom BundleNo
All listings for this product
Ratings and Reviews
Most relevant reviews
- Apr 05, 2020
Cloudline S4 inline exhaust fan
I was impressed with the quality of this grow tent exhaust fan. First of all, how they pack the fan in the original box, screams quality! They pack it very well, and include plenty of customer support if you have any issues. This fan is quieter than a Vivosun, Ipower, TopGrow exhaust fan. It has a built-in fan controller that changes the speed with a click button. You can also use this same fan with an AC Infinity digital humidity/temp meter if you decide to upgrade (2 fans can be controlled at the same time with the digital humidity/temp meter). Spend the extra money and get quality. You will NOT be disappointed with this exhaust fan for your grow tent.Verified purchase: YesCondition: New
- Aug 21, 2019
Good value. A little more noisy than I spected
It is easy to install and looks like a very sturdy construction. But one star removed cause it is a little more noisy than I spected. Installed on a recording booth fearly away from it (8 feet) but the sound reach the booth through the duct. I can't use the fan beyond the 2nd speed because of the noise.Verified purchase: YesCondition: New
- Jul 03, 2025
This is easily the best inline fan I hav...
This is easily the best inline fan I have ever used and I am willing to say it's probably the best 4in inline fan on the market. Period. Nothing else comes close. This fan is so quiet that even at half power, Iiterslly do not even hear the fan. Ill hear air being sucked through the car on filter, but NOTHING coming from the fan. ZERO vibrations too because they actually balance the fan bladesVerified purchase: YesCondition: New
- Sep 10, 2019
Cloudline S4 made by AC Infinity
I have 2, T4 fans,, if you do not need data sets or alarms... the S4 is the fan,, I really like this spartan approach to the controller. One button, every click increases fan rotation, when the circle is complete, max CFM and one more click turns the fan off. Other than the controller the fans are the same super quiet air handlers I highly recommend. BUY 2 you won't be sorry.Verified purchase: YesCondition: New
- Dec 25, 2018
Fine Fan
Excellent fan with solid features such as quiet, lightweight, great build quality and design. You cannot go wrong with AC Infinity products.Verified purchase: YesCondition: New
- Jun 05, 2025
Very useful for many ventilation purpose...
Very useful for many ventilation purposes. Exceptionally quiet and great quality.Verified purchase: YesCondition: New
- Jan 24, 2022
Gets the job done.
? Gets the job done...we'll see how long it lasts...Verified purchase: YesCondition: New
- May 16, 2024
Thanks. works great. Everything as advertised!!
Thanks. works great. Everything as advertised!!Verified purchase: YesCondition: Pre-owned
- Dec 21, 2020
Great product
Verified purchase: YesCondition: New
- Apr 28, 2022
Like it very much
Very much like it!Verified purchase: YesCondition: New
