SKU: 99761362137

AC Infinity - S-Series CLOUDLINE Quiet Inline Duct System Fan + Speed Controller

Sale price$122.39 Regular price$135.99
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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

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Description

AC Infinity - S-Series CLOUDLINE Quiet Inline Duct System Fan + Speed ControllerDesigned to quietly ventilate grow tents, transfer heating cooling to rooms, circulate fresh air, and cool AV closets. Features an 8 speed manual controller utilizing PWM. See T Series for temperature and humidity controls. Mixed flow design combined with a PWM controlled EC motor for a truly quiet and energy efficient performance. Kit also includes corded AC power adapter, installation manual, and all necessary mounting hardware. The duct fan system

  • Designed to quietly ventilate grow tents, transfer heating/cooling to rooms, circulate fresh air, and cool AV closets.
  • Features an 8-speed manual controller utilizing PWM. See T-Series for temperature and humidity controls.
  • Mixed flow design combined with a PWM-controlled EC-motor for a truly quiet and energy efficient performance.
  • Kit also includes corded AC power adapter, installation manual, and all necessary mounting hardware.

The duct fan system is designed to quietly cool AV equipment rooms and closets, and to ventilate various air circulation and exhaust projects. Features an inline speed controller utilizing PWM-technology. Containing an inline mixed-flow design, the duct fan can maintain airflow even in high static pressure applications. Contains an EC-motor for a quiet and energy efficient performance. The motor box containing the fan’s impeller and blades can be detached from the mounted frame for easy cleaning and maintenance. Complete kit includes one duct fan unit, one inline speed controller, installation manual, and all necessary mounting hardware.

Precise Speed Controller

The inline speed controller enables you to set the duct fan’s speed to optimal noise and airflow levels for various environments. Unlike common AC-powered duct fans that suppresses voltage to control fan speeds, this duct fan features an EC-motor that is precisely controlled using PWM (Pulse Width Modulation). This technology enables the fan's motor to be able to run smoothly at extremely low RPM speeds without generating motor noises and heat as seen on variable voltage controllers. Eight speed options are available with power switch, and backup memory. This S4 model can be connected to the smart controller of the CLOUDLINE T4 to share the same programming and power source.

Quiet and Energy Efficient Design

The inline fan features a mixed flow design using a stator blade and dual hydrodynamic wind circles. This gives it a high static pressure rating, enabling it to deliver airflow even in applications where air movement is being restricted. The motor houses dual ball bearings rated at 67,000 hours which allows the duct fan unit to be mounted in any direction. The unit is IP44 rated to be highly resistant to dust and liquids, and performs well even in harsh environments.

Applications

This quiet duct fan system is popular in a variety of applications including cooling AV equipment rooms, closets, racks, and cabinets. Due to its low noise and advanced control features, it’s also used in various air circulation and ventilation projects including hydroponic grow rooms and tents, exhausting bathrooms and attics, and other installations.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 99761362137

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4.2 ★★★★★
Based on 17 reviews
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R
Verified Purchase
Ravante Robinson
Boise, US
★★★★★ 4
Watch
Color: Silver white
Its looks high end for the price like Nixon high end but the latch gets loose easily
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2026
A
Verified Purchase
Amazon Customer
New York, US
★★★★★ 5
I like it a lot
Color: Rose gold, Color: Rose gold
Very nice watch. I've had it one day and already received compliments. The color is reserved yet striking. I found it easy to adjust the size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
N
Verified Purchase
Nitin
Port Orchard, US
★★★★★ 5
Nice Patek Phillip replica!
Color: Rose gold, Color: Rose gold
Nice watch! Doesn't look cheap. Casual and office wear, both ok. Removing links was easy. Decent size, good on my wrist. These days smaller watches are in trend and it does fit the requirement. Color is fancy. In low light conditions it does get darker hues and it looks even better to me.
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Reviewed in the United States on February 5, 2026
I
Verified Purchase
Isaac Young
Carnegie, US
★★★★★ 3
Packaging is most disappointing
Color: Black
Giving a 3-star at the moment because I just received the watch and usually comment on a new collection addition after about a week. •biggest turn off and cause for 3 star upon receipt is because of packaging. The main box seemed already used and returned or carelessly handled & very basic. How it's advertised & described as well as the image seller portrays of the product, the packaging fails at "luxury" depiction. •Link removal tool is very basic but this was a $23.00 watch. Because I am a collector I knew to pay attention to how pins are removed and had no problems removing the 4 links required to meet my desired size. •A few reviews said it's heavy and I'm used to pretty heavy + 44-48mm bezels so to my standards, I wouldn't 100% say it feels cheap(i mean c'mon it is so can't be too judgemental) but it slightly does feel "toyish" •Bracelet out the package even with plastic all over, came with two dot sized blemishes i keep focusing on and upset at. •Many reviews said after two hours, the time isn't accurate; thus far, time is fine •A few reviews said the double clasp is weak. 1 time it did loose but after removing links, ive done a lot of shaking and wrist action to test the clasps and nothing so far to match others experience •It has a nice appearance, can pass for business and casual •For a $26.00 watch after taxes I'm not disappointed as of yet besides the blemishes and packaging but will revisit in a week or so. •I read that the date doesn't keep accurately so I will update review after a trial period • I will say, if you dress correctly with this piece, I feel it has potential to draw attention from it's design
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Reviewed in the United States on November 3, 2025
M
Verified Purchase
MIke L
Massapequa, US
★★★★★ 5
All time favorite watch
This watch is amazing for the price. I have had mine for 5 years or so and I wear it regularly. It's very comfortable resin strap. The design of the face is I think stunningly beautiful. Yes that is a bit strong for a $25 watch but the way the globe pops out, the legibility on par with a high priced dive watch and the funcationality of a timer, stop watch, world time and a data bank you will never use, but still.. cool watch!
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Reviewed in the United States on June 16, 2020

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