Complete grow room extraction in one matched kit

The Kaizen Fan & Filter Extraction Kit combines the essential components needed to remove warm, humid air and manage unwanted airborne odours in a grow tent or indoor horticultural space.

Every kit includes a powerful Kaizen inline extraction fan, an RC-412 activated carbon filter, 5 metres of aluminium ducting and three jubilee clips. With six duct sizes available from 100mm to 315mm, there is an option for compact grow tents through to larger grow rooms.

Complete four-part kit
Six sizes available
Up to 1940m³/hr
UK plug fitted

What is included in the Kaizen extraction kit?

Every kit includes:

1 × Kaizen inline extraction fan
1 × matching Kaizen carbon filter
1 × 5-metre length of aluminium ducting
3 × jubilee clips

The fan, carbon filter and ducting supplied with each option use a compatible connection diameter, removing the uncertainty of matching separate ventilation components.

Powerful Kaizen inline extraction fan

The Kaizen inline fan features a strong steel casing and a powerful magnetic motor designed to provide dependable, cost-effective extraction. It delivers strong airflow even when operating against resistance from a carbon filter and ducting.

Each fan is already wired and fitted with a UK mains plug. The smooth connection flanges make it easy to attach the supplied aluminium ducting using the included jubilee clips.

RC-412 activated carbon filtration

The matching Kaizen carbon filter contains Australian virgin-mined RC-412 activated carbon for effective air filtration and odour management. Its high-density vent pattern and coned base plate help maintain airflow through the carbon bed.

Lightweight aluminium top and base plates provide strength without adding unnecessary hanging weight, making the filter easier to install inside a grow tent or grow room.

Available sizes and airflow rates

Kit option	Duct diameter	Fan airflow
100/300	100mm / 4-inch	320m³/hr
125/300	125mm / 5-inch	400m³/hr
150/300	150mm / 6-inch	550m³/hr
200/600	200mm / 8-inch	1220m³/hr
250/600	250mm / 10-inch	1550m³/hr
315/600	315mm / 12-inch	1940m³/hr

Choosing the correct extraction-kit size

Start by calculating the internal volume of your grow space by multiplying its length, width and height in metres. You should then consider the heat produced by the lighting, ambient temperature, humidity and the resistance created by ducting bends and the carbon filter.

The airflow figures above are maximum fan ratings. Real-world airflow will be lower once the filter and ducting are connected, so allow suitable additional capacity rather than choosing a fan based solely on the room volume.

Installation guidance

Position the carbon filter inside the growing area using suitable hanging straps or securely rated fixings.
Arrange the fan so that air is drawn through the carbon filter and then pushed towards the chosen outlet.
Connect the fan, filter and ducting using the supplied jubilee clips.
Keep the ducting as short and straight as practical to minimise airflow loss.
Check the airflow-direction arrow on the fan before switching the system on.
Test every connection for air leaks, vibration and unusual noise.

Hanging straps, additional connectors and external mounting hardware are not included unless specifically shown with the selected option.

Warranty and substitution information

Kaizen extraction fans include a one-year warranty. Retain your order information as proof of purchase.

Please note: In the event of a stock shortage, an alternative brand with matching specifications may be supplied.

Complete your ventilation setup

Explore our full selection of complete extraction kits or compare individual extraction and intake fans and carbon filters .

For replacement ducting, clamps, reducers and connectors, visit our ducting and ventilation accessories collection.

Frequently asked questions

What does the Kaizen extraction kit include?

Each kit includes one Kaizen inline extraction fan, one matching carbon filter, five metres of aluminium ducting and three jubilee clips.

Which Kaizen extraction-kit size do I need?

The correct size depends on the volume of your growing area, lighting heat, ambient conditions, humidity and airflow resistance. Allow additional capacity for the carbon filter, ducting length and bends.

Does the fan come with a UK plug?

Yes. Kaizen inline extraction fans are supplied wired and fitted with a UK mains plug.

Are hanging straps included?

No. Suitable hanging straps, rope ratchets or securely rated fixings must be purchased separately unless they are specifically shown with the selected option.

Can I use a fan-speed controller?

Controller compatibility depends on the fan motor and the controller’s operating method. Only use a controller confirmed as compatible with the selected fan.

How should the fan and filter be installed?

The usual arrangement draws air through the carbon filter, through the extraction fan and then along the ducting towards the outlet. Always check the airflow arrow on the fan before operation.

How often should the carbon filter be replaced?

Filter life varies according to operating hours, humidity, airflow and airborne contaminants. Maintain the outer sleeve and replace the filter when its odour-control performance noticeably declines.