Vortex Inline Duct Fan – 4" to 12" Extractor Fan
Vortex Inline Duct Fan – 4" to 12" Extractor Fan
Vortex Inline Duct Fans – Serious Airflow, Sensible Price
Grow lights get hot, and hot, still air is where plants struggle: leaves scorch, humidity builds and roots suffer. A Vortex inline fan clears it out. It's a high-performance centrifugal fan that moves a lot of air for the money, with thermal overload protection that shuts it off safely if it ever gets too hot. It arrives with a UK plug already fitted, so it's ready to run straight from the box.
Which Size?
| Size | Max airflow | Best for |
|---|---|---|
| 4" (100mm) | 350 m³/hr | Small tents, cupboards, propagation |
| 5" (125mm) | 490 m³/hr | 60–100cm tents and plant rooms |
| 6" (150mm) | 800 m³/hr | 1–1.2m tents, the classic setup |
| 8" (200mm) | 1,050 m³/hr | 1.2–1.5m tents and small rooms |
| 10" (250mm) | 1,150 m³/hr | Large tents and rooms |
| 12" (300mm) | 1,800 m³/hr | Grow rooms and 12" duct systems |
Key Features
- High-pressure centrifugal design, built to pull through carbon filters
- Thermal overload protection
- Supplied with a UK plug fitted
- Mounting stand for horizontal or vertical fixing
- Quiet running for its power
Perfect For
- Grow tents and rooms: clearing hot air from under the lights
- Plant rooms, propagation and mushroom chambers
- Drying rooms, workshops and garages
Build the System
Pair with a carbon filter rated above the fan's airflow and matching ducting. A Vortex or Variispeed speed controller lets you run it quietly at lower speeds.
🌿 Rose's Pro-Tip: buy one size up and turn it down. A bigger fan at 60% is quieter than a smaller fan flat out, and it has headroom for heatwaves.
Black Flag Horticulture Ltd, Coventry.