SKU: 6614039396

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

$89.99 $99.99
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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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    4.7 ★★★★★
    Based on 23 reviews
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    M
    Verified Purchase
    Minerva Jayne Van Allen
    Louisville, US
    ★★★★★ 5
    Perfect Squeaky Toy for My Exes Deranged Dog
    Color: Multicolor, Color: Multicolor
    My ex-beau and I are still friendly and we exchange Christmas presents. This year, I wanted to make sure that his utterly nutty and completely bonkers Aussie, Diego, got a new toy so that he has added enrichment in his enclosure. Diego really enjoyed this toy! A perfect size for him and a loud squeaker, which my ex will undoubtedly appreciate being squeaked non-stop while he is trying to game with his various assortment of video game people. Worth every penny. Diego’s smiling face is proof of his delight in his adorable Slothicorn. Squeak away, Diego! Squeak away!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 14, 2026
    B
    Verified Purchase
    BarbaraAnn
    Bozeman, US
    ★★★★★ 4
    Fun
    Color: Multicolor
    A little smaller than we'd hoped but all in all he's pretty cool and our dogs loved him.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 5, 2025
    S
    Verified Purchase
    Siri Lynn Colomy
    New York, US
    ★★★★★ 5
    Worth it!
    Color: Llama
    Wanted to keep this for myself! Made well, size is perfect for a 90 pound pup, durable enough for a non chewer (she cleans their fur but doesn’t chew anymore). Durable enough that has been left outside during Summer storms and washed/dryed a couple times already (I use a laundry bag) and still has its adorable shape. Great value for the money, though I might need to buy another one for myself! *^_^*
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 1, 2025
    D
    Verified Purchase
    Danielle Cuddington
    Chelsea, US
    ★★★★★ 5
    Our Doodle's Fav Toy
    Color: Multicolor
    The first slothicorn toy that we received had a broken squeaker. We were able to quickly and easily get a replacement and send the broken one back. This is one of my pup's favorite toys, although I don't think the horn will last long-- it's the part she likes to chew on the most! At 5lbs, the toy is the same size as my Goldendoodle puppy. I think the toy is overpriced when not on sale (I got on Black Friday promo), so I would encourage waiting for a price drop before purchasing or locating another option that's affordable.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 2, 2026
    K
    Verified Purchase
    Kathy Sako
    Boise, US
    ★★★★★ 3
    Not very durable if your dog likes to play aggressively with his toys.
    Color: Shello There
    My yorkie loves it. However he removed the rope tail tail on day one. Within a couple of days it came loose at the seem from chewing and he started pulling the stuffing out. I won't give back to him until I am able to mend it.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 23, 2026

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