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AC Infinity

AC Infinity CLOUDLINE PRO S4, Quiet 4” Inline Duct Fan with Speed Controller – EC Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

    • Based on 4,047 reviews
Condition: New
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Availability: 15 left in stock
Fulfilled by Amazon
Arrives Monday, Nov 25
Order within 23 hours and 33 minutes
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Size: 4-Inch PRO, Speed Controller


Features

  • Designed to ventilate grow tents, transfer heating/cooling to rooms, circulate air, exhaust odors, and cool AV racks.
  • 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 Dimensions: 11.9"L x 6.9"W x 7.4"H


Brand: AC Infinity


Voltage: 240 Volts (AC)


Wattage: 21 watts


Cooling Method: Air


Compatible Devices: Transmission Coolers


Noise Level: 28 dB


Maximum Rotational Speed: 27000 RPM


Air Flow Capacity: 205 Cubic Feet Per Minute


UPC:


Compatible Devices: Transmission Coolers


Noise Level: 28 dB


Maximum Rotational Speed: 27000 RPM


Air Flow Capacity: 205 Cubic Feet Per Minute


Wattage: 21 watts


Cooling Method: Air


Voltage: 240 Volts (AC)


Item Dimensions L x W x H: 11.9"L x 6.9"W x 7.4"H


Manufacturer: AC Infinity


Global Trade Identification Number: 90


Brand Name: AC Infinity


UPC: 819137020290


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 25

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.

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Top Amazon Reviews

    • The Rolls-Royce of exhaust fans
Size: 4-Inch PRO, Speed Controller
This is my third, and likely last, exhaust fan I've bought for a project. I wanted an exhaust system for our cat's litter box cabinet so that it would create a small amount of negative pressure and pull the bad odors outside. This fan is absolutely perfect in every possible way and has far exceeded my expectations. I arrived at this fan, after purchasing two others that were just too loud, as the noise seemed to bother the cat. I installed 2" PVC in the wall behind where the cabinet is, because I needed something small enough to fit. I then had a 90 degree elbow coming out of the wall, through a cover plate and then going into the back of the cabinet. In the attic, I installed a 2" to 4" duct adapter onto the 2" pipe, ran 25' of flex duct to this fan, and then another 16' run of duct to the roof vent. While the first two fans where very noisy, even at the lowest speeds, this one is virtually silent. I'm running it on level 2 and cannot hear anything inside the cabinet or in the house. Since I'm restricting the intake to only 2", anything above level 2 would likely just be a waste of power. This setup is working perfectly and creates more than enough exhaust to do the job and it does it in silence. The prior fans moved the air ok but had a really annoying hum that could be heard through the ductwork and also inside the house through the insulated ceiling. I hear nothing with this one. In addition to the above, the fan is rock solid and came with EVERYTHING one could possibly need to install it, including hose clamps. It's almost overkill but shows attention to detail. It also came with a very nice instruction book (yes, it's a substantial book) with detailed instructions on every aspect of installation and operation. The speed controller is very nice and easy to use. I just set it to my desired level and forget it. It will remember its current setting and resume after a power outage. This fan cost a bit more but is absolutely worth every penny paid. The difference in quality and quietness cannot be matched. I could not be happier, cat is happy, and we have an odor-free home. ... show more
Reviewed in the United States on December 8, 2023 by R. Precourt
    • Quiet
Size: 4-Inch PRO, Speed Controller
The Cloudline product series comes with a number of different features. This is is a simple version, no frills. The remote is a wired one, and surprisingly uses a USB connector to plug into the fan. I thought it was going to be wireless, so I plugged it in to charge the battery. Never let an instruction manual get in the way of doing something stupid! It was not damaged. Assembly in line with the flexible 4" ducting was straightforward. I have it placed on my worktable (it is recommended that you screw it down). It has a slow spin up so it does not move on my worktop. I am using it to increase the airflow out of my laser router machine, and it does that superbly. It is quiet, despite some people saying otherwise, even at the highest setting. If I have a criticism it is that it's going to be labor intensive to clean the interior periodically, which they say is necessary. ... show more
Reviewed in the United States on July 29, 2024 by Martin Batten
    • Well built. Does the job.
Size: 4-Inch PRO, Speed Controller
Review Image by Optimist Optimist
Review Image by Optimist Optimist
Review Image by Optimist Optimist
Review Image by Optimist Optimist
Good quality construction and excellent packaging / accessories. I've been running it for a few months now, pretty continuously with no problems. The sound level definitely depends on the speed. I keep it around a setting of 6 or 7 which seems to strike a good balance between sound, and CFM flow. See Excel table in pictures. The CFM is subject to error as I just used a simple low-cost device to measure air-flow speed and don't know it's accuracy. (I'm using the fan to ventilate the house for better air quality, as a prelude to installing something like an ERV system). ... show more
Reviewed in the United States on March 8, 2024 by Optimist Optimist
    • Quiet, clean design, includes all hardware
Size: 4-Inch PRO, Speed Controller
Review Image by The Flying Dutchman The Flying Dutchman
Review Image by The Flying Dutchman The Flying Dutchman
Review Image by The Flying Dutchman The Flying Dutchman
This fan is being used to remove smells from my work shop (epoxy vapor, wood working, painting). It is a 13 x 11 work area which translates into just under 1200 cubic feet. This means that at full speed this fan can “turn” the area every 6 minutes. I drilled a 4” hole through the house rim so I can exhaust the smelly air outside. The power cable is about 8 ft long. The control cable is 18 ft which allowed me to place the controller in a good location. I love how it all came together, speed control is effortless. At the first three speeds there is almost no sound, after that the noise level gradually increases. At the 3rd speed I measure 40 db at 3 ft removed from intake Full speed registers at 63 db. The area itself registered at 35 db. For your reference the 40 db is virtually unnoticeable. For me this fan was worth every penny. The included documentation is very clear. As mentioned this fan comes complete with hardware, strapping, 4” band clamps…… Very Nice! ... show more
Reviewed in the United States on January 7, 2024 by The Flying Dutchman The Flying Dutchman

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