SKU: 6614039396

AC Infinity CLOUDLINE S4 Quiet Inline Duct Fan System w/ Speed

Sale price$89.99 Regular price$99.99
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Ships within 48 hours · Estimated delivery Sep 17 - Sep 22

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Description

AC Infinity CLOUDLINE S4 Quiet Inline Duct Fan System w/ SpeedDescription Designed to quietly ventilate grow tents, transfer heating cooling to rooms, circulate fresh air, and cool AV closets. Features a wired 10 speed fan controller; also compatible with all UIS controllers with intelligent programming. PWM controlled EC motor provides quiet and energy efficient performance with minimal heat and noise. Mixed flow design with stator blade and hydrodynamic wind circles enables airflow delivery in high resistance

Description
  • Designed to quietly ventilate grow tents, transfer heating/cooling to rooms, circulate fresh air, and cool AV closets.
  • Features a wired 10-speed fan controller; also compatible with all UIS controllers with intelligent programming.
  • PWM-controlled EC motor provides quiet and energy-efficient performance with minimal heat and noise.
  • Mixed flow design with stator blade and hydrodynamic wind circles enables airflow delivery in high resistance areas.
  • Duct Size: 4" | Dimensions: 6.9 x 11.9 x 7.4 in. | Airflow: 205 CFM | Noise: 28 dBA | Bearings: Dual Ball
  • Product Description: 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. It is built with a PWM-controlled EC motor for 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. Includes a smart controller with dynamic climate and time-based programming and can connect to multiple UIS devices. This product is a part of the UIS platform of grow devices and smart controllers, designed to integrate with each other to achieve your ideal environment.
  • Precise Speed Controller: The speed controller enables you to set the duct fan's speed between ten speed levels to optimal noise and airflow levels in various environments. The precise airflow control is supported by the inline fan's cutting-edge EC motor that is precisely controlled using PWM (Pulse Width Modulation). This enables it to run smoothly at extremely low RPM speeds without generating motor noise. Also features backup memory that retains the last speed setting whenever power is cut off from the controller.
  • Quiet and Energy Efficient Design: This duct fan uses a mixed-flow design using a stator blade and dual hydrodynamic wind circles, enabling it to deliver airflow even in applications where air movement is 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.
  • Specifications
  • Product Identification
  • Manufacturer: AC Infinity Inc.
  • Product Name: CLOUDLINE S4
  • Product Model: AI-CLS4
  • UPC Code: 819137020290
  • Product and Mounting Dimensions - Fan Unit
  • Duct Size: 4"
  • Total Dimensions: 7.40 x 11.93 x 6.93 in. (18.8 x 30.3 x 17.6 cm)
  • Mounting Hole-To-Hole Distance: 3.15 x 2.36 in. (8.0 x 6.0 cm)
  • Screw Hole Diameter: 0.197 in. (0.5 cm)
  • Cord Length to Controller: 120 in. (10 feet)
  • Product and Mounting Dimensions - Controller
  • Total Dimensions: 3.34 x 2.95 x 0.51 in. (8.5 x 3.6 x 1.3 cm)
  • Total Airflow: 205 CFM
  • Total Noise: 28 dBA
  • Max Speed: 2800 RPM
  • Static Pressure: 223 Pa
  • Voltage: 100-240V AC
  • Frequency: 50/60 Hz
  • Max Power Draw: 28 W
  • Average Power Usage: 21 W
  • Current: 0.4 A
  • Power Connector Type: US Plug (NEMA 5-15 Type B)
  • Operating Humidity: 35 to 85% RH
  • Operating Temperature: 32 to 140 degrees F
  • Ingress Protection: IP 44
  • Fan Bearings: Dual Ball
  • Mounting Positions: Horizontal or Vertical
  • L10 Life Expectancy: 67,000 Hours
  • Data Sheets
  • Download the AC Infinity CLOUDLINE Series CE Certificate HTT191213465: here
  • Download the AC Infinity CLOUDLINE Series Intertek ETL Certificate 5021417: here
  • Download the AC Infinity Fans RoHS Certificate SZXEC1900087001: here
  • Download the AC Infinity CLOUDLINE Series 4 SAA Certificate 211377: here
  • Download the AC Infinity CLOUDLINE PRO Fan Kits IC Certificate HK2303230989 E: here
  • Download the user manual: here
  • 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: 6614039396

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    Josh
    Lowell, US
    ★★★★★ 5
    Comfort and Great for Standing
    Definitely the best shoe for standing on ur feet all day. I stand for about 7.5 hrs a day and this has changed things for me drastically. The foam makes a difference and the shoe is stylish as well.
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    Reviewed in the United States on May 26, 2026
    A
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    Adriana Vasilak
    Waukegan, US
    ★★★★★ 5
    ASICS Gel Running Shoes – Comfortable, Lightweight & Perfect for Gym and Running
    Size: 10.5 X-Wide, Color: Black/White, Size: 10.5 X-Wide, Color: Black/White
    I recently tried a pair of ASICS Gel sneakers, and I’m really impressed. They are extremely comfortable, with great cushioning that makes a big difference during workouts. I’ve used them both at the gym and for running, and they perform very well in both situations. The support is excellent, and they feel stable without being too heavy. I especially like how they absorb impact when running, which helps reduce stress on my feet and knees. They also have a nice fit and feel breathable, so my feet don’t get too hot. Overall, I’m very happy with them. If you’re looking for comfortable and reliable sneakers for the gym and running, I would definitely recommend ASICS Gel shoes.
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    Reviewed in the United States on April 20, 2026
    B
    Verified Purchase
    Benyamin
    Grantham, US
    ★★★★★ 5
    Great Shoes by Asics
    Size: 9.5 X-Wide, Color: Piedmont Grey/Black
    Comfortable and durable as heck; classic Asics quality. I love the casual appearance of it, which means I can wear it on a daily basis too. True to the size.
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    Reviewed in the United States on April 11, 2026
    F
    Verified Purchase
    Francismommyof3
    Natrona Heights, US
    ★★★★★ 5
    Excellent for a 4E wide foot!
    Size: 9 X-Wide, Color: Piedmont Grey/Black
    As a female with a wide foot, it is very hard to find a good, comfortable shoe for walking, running and hiking. These were immediately comfortable and really didn't require a break in, although they are more comfortable after a few days of use. My 1st day I put about 5 miles on them and they were great. The cushion isn't like a cloud, but it's there and very responsive. These are very supportive and breathable. I have gone on a few Easy to moderate hikes with them and they're just fine for a dryer trail. They have good grip for rocks as well. 10/10 for these! I will also add that I underpronate, and these provide wonderful stability for that.
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    Reviewed in the United States on April 17, 2026
    A
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    Amazon Customer
    Cuba, US
    ★★★★★ 4
    Great comfort, but not built for long-term daily use
    Size: 9.5 X-Wide, Color: Black/White, Size: 9.5 X-Wide, Color: Black/White
    I've had this shoe for almost a year now. I use it almost daily on a walking pad while working from home, plus as a gym shoe. After nearly a year of this routine, I've noticed considerable wear on the sole. Don't get me wrong: the shoe is great and very comfortable, looks decent, and fits great at the start, and has good breathability. However, that comfort has started to fade as the shoe has worn down. Gel-Contends 9 is a really good shoe, but definitely not a long-term, heavy-use shoe. Perfect for casual or rotation use, occasional runs, but don't expect it to last 12+ months of daily wear.
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    Reviewed in the United States on April 22, 2026

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