Description
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. 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.
FEATURES
- Designed to quietly ventilate grow tents, transfer heating/cooling to rooms, circulate air, exhaust odors, and cool AV racks.
- 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.
- Duct Size: 6” | Dimensions: 7.9 x 12.6 x 8.4 in. | Airflow: 402 CFM | Noise: 32 dBA | Bearings: Dual Ball
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 S6 model can be connected to the smart controller of the CLOUDLINE T6 model 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.
- Reviews
- Questions
Thank you for submitting a review!
Your input is very much appreciated. Share it with your friends so they can enjoy it too!
Just awesome
Nothing but the best from Indoor Farmer. Awesome folks with awesome service and fast shipping.

Wonderful product
Very well made blowers. Compact and light.

Class act !
Finally an inline fan that doesn’t sound like a jet ! I love the classy look of all the AC Infinity line and when the fan ramps up to speed it’s got plenty of power. Nice how all their products complement each other and work as a team !

Indoor Farmer for the win and peace of mind
Always a bit dodgy when buying goods online for the garden...but not when it comes to Indoor Farmer. They are knowledgeable, helpful and most likely one of their team has personally used the products they sell. They can give you detailed info and honest feedback and their after sales service is top notch...i had to return a product and Chris made it as easy and painless as possible. Also the products are high quality that i received and the package was organized nicely. Growers helping growers...dont hesitate in the slightest to vote with your dollars when it comes to Indoor Farmer. Karmically clean when supplying the goods for the Green. Thanks Team Indoor Farmer!

Buy quality, buy once.
It's my second inline fan from AC Infinity, I have a 4" to intake, and the 6" for exhaust. Paired with controller 67 (bluetooth) it's a breeze to set tent temperature. Buy it, it's worth every penny

Solid fan.
Ordered the S6, it was shipped out promptly, and packaged securely. AC infinity fans to everything there supposed to do. And the build quality is top notch. This is my third AC infinity fan. Likely won't be my last.