Inline Fans by Cultiv8 — Quiet Steel Duct Booster Fans for Grow Tents
CULTIV8-INLINEFAN-100mm
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Pairs well with
The Cultiv8 Inline Fan is a fixed-speed steel duct booster built for growers who want air moving without dials, apps or extra boxes. Plug it in and it runs — steel body, steel blades and a steel ball-bearing motor rated for around-the-clock duty. Available in 100mm, 150mm and 200mm duct sizes moving 140 to 420 m³/h, it's the simple way to feed fresh air into a tent, boost a duct run or keep a grow space circulating.
Specifications by Size
| 100mm (4") | 150mm (6") | 200mm (8") | |
|---|---|---|---|
| Airflow | 140 m³/h | 330 m³/h | 420 m³/h |
| Power | 22W | 35W | 37W |
| Speed | 2400 RPM, fixed (no speed control) | ||
| Motor | Steel ball-bearing, rated for continuous running | ||
| Construction | Steel body and steel blades, duct spigots both ends | ||
| Warranty | 12 months | ||
Enter your tent dimensions and get a matched fan size in seconds.
Fan Size Calculator- These are low-pressure duct boosters — for pulling through a carbon filter or long restricted runs, step up to an EC or centrifugal fan and keep the Cultiv8 on intake duty
- Mount it as your intake at a low corner opposite the exhaust — cool air in at the bottom, warm air out at the top kills hot spots
- Clamp or tape every duct joint — a loose duct flapping at 2am is a rite of passage you can skip
How to Install It
Pairs Well With
Ducting, clamps and complete airflow kits to plumb this fan into your setup properly.
Clip Fans & Air CirculationMix the fresh air this fan brings in — a clip fan spreads it through the canopy so every plant gets a share.
SigilVentus EC Silenced FanThe step-up for filtered extraction — EC motor, speed control and the static pressure to pull through a carbon filter.
Common Questions
Does it have a speed controller?
No. The Cultiv8 Inline Fan runs at a fixed 2400 RPM — that's the point of it. No controller to buy or configure; it moves full air the moment it's powered.
Can it pull through a carbon filter?
No — not well. It's a low-pressure axial fan, so airflow drops sharply under filter restriction. Use it for intake, circulation and short duct runs, and put an EC or centrifugal fan on filtered extraction.
Can it run 24/7?
Yes. The steel ball-bearing motor is built for continuous duty — most growers leave these running around the clock as intake or circulation fans.
Which size do I need for my tent?
The 100mm suits small tents and propagation spaces, the 150mm covers most single tents, and the 200mm handles larger tents and rooms. Use the Fan Size Calculator above for a match based on your exact dimensions.
Is there a warranty?
Yes. Cultiv8 inline fans carry a 12-month warranty.
Select Size