#1 Home Improvement Retailer

Internet # 317927189

Model # AI-CLT4

Cloudline T4 Quiet 4 in. Inline Duct Fan Temperature Humidity Controller Hydroponics Ventilation Heating Cooling Booster

$119.00
Apply Now
Pay $94 after $25 OFF your total qualifying purchase upon opening a new card. 
Apply for a Home Depot Consumer Card
  • To ventilate hydroponic grow rooms, transfer heating/cooling
  • Temperature & humidity program, fan speed, timer, alarm system
  • Truly quiet and energy efficient PWM-controlled DC or EC-motor
  • View More Details

Free & Easy Returns In Store or Online

Return this item within 90 days of purchase.

Read Return Policy

Ask about this product

Get an answer now with AI

AI-generated from the text of manufacturer documentation. To verify or get additional information, please contact The Home Depot customer service.

Product Details

About This Product

The new Cloudline series contains a cutting-edge electronically commutated (EC) motor, controlled using precise electronic pulses and smart programming. This enables the inline fan to operate considerably quieter and reach low speeds without generating noise or heat. The EC motor is also twice as energy-efficient and can save up to 40% in energy costs, paying for itself in the long run.

Highlights

  • Designed to ventilate hydroponic grow rooms, transfer heating or cooling, cool AV closets, and exhaust odors
  • Dynamic temperature and humidity programming with timers, grow cycles, scheduling, minimum speed
  • Connect with our app via Bluetooth to access advance programs, alarms, notifications, and view climate data
  • Mixed flow design combined with a PWM-controlled DC or EC-motor for a truly quiet and energy efficient performance
  • Kit also includes corded AC power adapter, installation manual, and all necessary mounting hardware
  • Duct size: 4 in., dimensions: 6.9 x 11.9 x 7.4 in., airflow: 205 CFM, noise: 28 dBA, bearings: dual ball
  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Product Information

Internet # 317927189

Model # AI-CLT4

Specifications

Dimensions: H 11 in, W 10 in, D 14 in

Dimensions

Product Depth (in.)

14 in

Product Height (in.)

11 in

Product Width (in.)

10 in

Details

Amperage (A)

1.2 A

Brand/Model Compatibility

Universal

Duct Type

4" Round

Horsepower (hp)

0.271 hp

HVAC Product Type

Inline Duct Fan

Material

Steel

Maximum air flow (CFM)

205

Pack Size

1

Product Weight (lb.)

6 lb

Returnable

90-Day

Voltage (volts)

100/240

Warranty / Certifications

Manufacturer Warranty

2 Years

Questions & Answers

for this 4 inch unit, If 205 cfm is the max airflow at high speed what is the lowest cfm at minimum speed? Can this be used for exhausting air from a sauna very high humidity?
ByMar 10, 2026
0 Answer | 
Answer This Question

Which controller does it come with? Is it the controller 69 or a different model?
ByJan 6, 2025
1 Answer | 
Answer This Question

The CLOUDLINE T4 is equipped with the Controller 69 Pro.

By|Jan 13, 2025

    (1)

    can it be added to a cold air intake on a car
    ByApr 26, 2024
    1 Answer | 
    Answer This Question

    The fan requires an AC outlet for power, it was not designed for this.

    By|Oct 22, 2024


      Wattage ?
      ByApr 17, 2024
      1 Answer | 
      Answer This Question

      21W

      By|Oct 23, 2024


        What is the longest you can run a duct from this fan.
        ByMar 9, 2024
        1 Answer | 
        Answer This Question

        This will depend on your application. However, we have only tested this with our ducting which reaches 25 feet.

        By|Oct 24, 2024


          Can the thermostat be set to come on at or below 40 degrees F. Considering using this for moving warm air into a cold area to keep pipes warm. What is the temperature range?
          ByFeb 4, 2022
          1 Answer | 
          Answer This Question

          Yes you can set it for that but I doubt it will get the job done. I bought 2 of these, and they just don't work like they should In my honest opinion. And I'm not a big complainer, I have extra equipment to help the thing and it does nothing, except looks

          By|Jun 19, 2022


            Viewing 1-6 of 6

            Customer Reviews

            4.9 out of 5

            • 4.9 out of 23 reviews
            • 93% recommend this product
            Filter by:
            Showing 1-10 of 23 reviews
            Keeps my office warm.
            I have a room in my house I use as an office. It is the coldest room in the house. We ordered this duct fan to try to bump up the heat coming into that room. The duct booster was packaged nicely. It was easy to install in the line. We routed the temperature/humidity sensor to the office vent. The cords are nice and long to accomodate putting the controller in a more convenient location to be able to adjust the temperature. I am still playing with tuning it but it definitely manages the AC airflow better. So far it seems to be holding office temp around 78 while the rest of the house is set to 73. You can manage humidity and temp levels to cut airflow on and off at numerous parameters.
            by
            • Recommended
            1 found this review helpful
            Best tent fan
            This is the absolute best fan for ventilating a grow tent. It checks humidity and temp and adjusts the fan speed accordingly. It's easy to set up, there is a lot of extra cabling to use a variety of sized tents. I am also surprised how quiet the fan is! When paired up with a carbon filter it removes smell almost completely. The display is a helpful add-on, you can tell the tent conditions without opening it, easily mount it on the tent or on a panel.
            by
            • Recommended
            Well-made and quiet
            I am reviewing the AC Infinity Cloudline T4 quiet 4” inline duct fan with Temp and humidity controller. I got this to use on my homemade herb garden and it is excellent. The fan is light weight and quiet. I found it simple to mount and connect to my system. The controller and sensors were also easy to connect. The User Manual is well done, with detailed instructions. I mounted my controller on the wall near my garden. I like the display. Programming is certainly the most challenging part of the system but once I understood how to do it I was able to get the settings I wanted. The system is working just as I want now. I would recommend this to others that need a good vent fan system.
            by
            • Recommended
            A great fan
            I got this about a week or two ago. Right out of the box i could tell it was going to be a good product. It is simple to install if you know whqt you are doing. It is not a complete ventilation system. You will need to buy more parts to be a complete ventilation system. The materials it is made out of are very sturdy materials. The computerised screens are very high tech.
            by
            • Recommended
            Extremely quiet energy efficient inline fan
            This AC Infinity Cloudline T4 Quiet 4 in. Inline Duct Fan is extremely quiet, moves a ton of air, easy to install, and the included fan controller makes it a great bargain and energy efficient. I was able to install this fan on AC Infinitys’ 5x5 grow tent without purchasing any additional hardware or ductwork and couldn’t be more please with the quality and the operation of the smart controller. The smart controller enables you to have the fan automatically turn on when the temperature or humidity gets to high or low depending on how you program it. You can also put the controller in manual mode and set the fan speed to your choosing. The controller also features an alarm you can set to go off if temp/ humidity aren’t within the high/low program value. Or, you can use the timer feature for the fan if you choose.
            by
            • Recommended
            1 found this review helpful
            It meets my expectations
            I'm getting ready to start a small green house. I've talked to many people and when you ask about about ventilation fans you always get the answer AC infinity. Now I know why, from opening the box you can tell it's a quality fan. The fan is packed very well and included great easy to read directions and all the parts needed are included. The controller is super nice and easy to read and use. The controller also has many custom functions to meet your needs. The fan also has 7 speeds and is very quiet and flows a ton of air for only a 4in fan. If your like me you want to get quality, look no further this Ac infinity t4 will not disappoint.
            by
            • Recommended
            2 found this review helpful
            Great for laser exhausting
            I have a project laser setup in my garage shop, and the smoke and fumes can get a bit overwhelming depending on the project I’m doing. I’ve tried a couple of different methods to help with the exhaust, but nothing has worked the way I wanted yet. I saw videos online that people were recommending using an inline duct fan to suck the smoke and fumes out, so I wanted to give that a try. I grabbed the 4 inch model as that’s the size of hose I am using, and the suction seems quite good and very quiet. The display and humidity programming is probably more than I need for my venting project, but still nice to have. This is a nice addition to my shop.
            by
            • Recommended
            1 found this review helpful
            Good fan
            Is the review of the Infiniti cloudline T4 quiet inline ventilation booster fan what comes with a temperature humidity control and a temperature and humidity stat so far it seems to be working pretty good moves a lot of hair I do like the program on it it does make a big difference you can use it to exhaust their out you can use it to bring Arian it's got 4 inch I need a rear end motor super quiet you don't hear it run at all made me put in a remote location she don't see it or hear it I would recommend this fan for anybody looking to add to a ventilation system increase the velocity
            by
            • Recommended
            Quite inline duct fan
            AC Infinity Inline Duct filter with speed controller. Quite 4” inline fan. T4 Comes with a controller that can accept a second fan and a long lead to install away from the fan. Place in attic and bring fresh air into a room or even the whole house. Because of electronically commutated motor, You have several speeds. Has a very slow speed that is so quite, you might not know if it is running unless you place a hand over the output side. Do not place anything into the fan. Damage or injury could come to you. With the dual controller for a push and pull configuration.
            by
            • Recommended
            Ventalates very well
            This inline duct fan is so quite you cannot hear it running and moves a good amount of air flow . I am not using it in my air conditioning system , I am going to use for a ventilation system for my stereo equipment in my work shop , due to it gets very warm when operating the stereo in the warmer months and have just been using a fan to blow air air over the stereo and this fan is perfect for the job and it comes with a really cool controller that I can set the temperature setting to only run when needed . You can also control humidity somewhat if you want to .
            by
            • Recommended
            1 found this review helpful
            Showing 1-10 of 23 reviews