Cloudline Pro T Inline Duct Fans by AC Infinity – Climate-Smart Ventilation with Controller 69 Pro
AI-CLT4
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Pairs well with
The AC Infinity Cloudline Pro T is the same EC-motor inline duct fan as the Pro S — same mixed-flow airflow, same quiet brushless motor, same build quality — bundled with the Controller 69 Pro for WiFi app control, smart scheduling, and climate automation out of the box. Set temperature, humidity, and VPD triggers from your phone, review historical charts, and let the fan run your tent ventilation on autopilot. Available in five sizes from 4" (205 CFM) up to 12" (1604 CFM).
Specifications
- Set a minimum fan speed of 2–4 as a constant baseline with temperature and humidity triggers ramping higher — constant low airflow keeps conditions stable and the motor barely sips power at low speeds.
- Place the sensor probe at canopy height in the centre of the tent, not near the door or the fan itself — trigger accuracy depends entirely on where the probe reads from.
- Clean the blades every few months and wash your carbon filter pre-filter at the same time — a choked intake makes the fan work harder for less airflow.
How to Set Up
Pairs Well With
Match your filter diameter to the fan size — the mixed-flow design is built to pull through carbon without losing airflow.
Fan, Filter & Ducting KitsComplete matched ventilation bundles — fan, filter, ducting, and clamps in one kit with nothing left to guess.
All AC InfinityThe Controller 69 Pro runs the full UIS ecosystem — add clip fans, humidifiers, and heaters under the same automation.
Frequently Asked Questions
What is the difference between the Cloudline Pro T and Pro S?
The fan unit is identical — same EC motor, airflow, and build. The Pro T includes the Controller 69 Pro with WiFi app control, smart scheduling, and VPD automation; the Pro S ships with a wired 10-speed controller only. If you want app control and full automation, the Pro T is the one.
Which size do I need for my grow tent?
As a guide: 4" suits tents up to 0.6x0.6m, 6" covers 1.0x1.0m to 1.2x1.2m tents, 8" suits 1.5m+ tents, and 10" or 12" are for grow rooms and multi-tent extraction. Always match your carbon filter to the same diameter as the fan.
Can the Controller 69 Pro run other AC Infinity devices?
Yes. The Controller 69 Pro is part of the AC Infinity UIS ecosystem and can control additional UIS devices — clip fans, humidifiers, heaters, and grow lights via UIS adapters — alongside the inline fan, all coordinated from the same app.
Does it need WiFi to work?
No. The Controller 69 Pro operates fully standalone — all triggers, schedules, and speed control work from the controller itself. WiFi and the app add remote access, historical data, alerts, and CSV export, but they are not required for day-to-day operation.
Is the Cloudline Pro T quiet enough for a bedroom grow?
Yes, at typical operating speeds. The 4" runs at 28 dBA and the 6" at 32 dBA at full output — and both run quieter again at the baseline speeds most tents need. The EC motor avoids the hum and drone of cheaper AC fans, which is what people usually notice at night.
Select Size
Smart Ventilation, Straight Out of the Box.
AC Infinity Cloudline Pro T — EC inline fan with the Controller 69 Pro included. Pick your size and put your climate on autopilot. Free shipping on orders over $499*