Mixed Flow - Budget Extraction Kits

Grouped product items
Product Name Qty
Mixed Flow Kit - 4-inch with Aluminium Ducting
Mixed Flow Kit - 4-inch with Combi Ducting
Mixed Flow Kit - 5-inch with Aluminium Ducting
Mixed Flow Kit - 5-inch with Combi Ducting
Mixed Flow Kit - 6-inch with Aluminium Ducting
Out of stock
Mixed Flow Kit - 6-inch with Combi Ducting
Out of stock
Mixed Flow Kit - 8-inch with Aluminium Ducting
Mixed Flow Kit - 8-inch with Combi Ducting
In stock
  • Excellent cost-effective extraction system
  • Two speed settings for extra control of your environment
  • Supplied with a quality Rhino Hobby Filter (no cheap knock-offs to let you down!)
  • Available with a choice of aluminium or combi ducting
  • Replenishes vital CO2 in your grow area, maintaining photosynthesis rates (for bigger plants!)
  • Helps to maintain optimal environmental conditions

Low-Cost Fans with Two Speed Settings

Mixed Flow Fans come in at extremely low price-points while offering high airflow rates and multiple speed settings. Unlike other budget fans out there, Mixed Flow fans are built to a decent standard and won't break down after a month, putting your grow room at risk... Choose one of these kits and you'll get a quality system without breaking the bank.

Recommended Additional Purchases

Hanging equipment - to mount your extraction kit at the top of your grow room or grow tent

How Mixed Flow Fan Kits Work

Check out the One Stop Grow Shop Blog to learn about the importance of extraction kits, and their role in controlling odours, temperatures, humidity levels and CO2 levels.

These kits are supplied with either a 4-inch, 5-inch or 6-inch Fan and Rhino Hobby Filter, a choice of aluminium or combi ducting, and 3 duct clips for connecting everything together.

To see our full Extraction Kits range, click here


1 x  Mixed Flow Fan (choose between 4-inch, 5-inch, 6-inch or 8-inch)

1 x Rhino Hobby (sized to match your choice of fan)

1 x 5m length of ducting (choose aluminium or combi ducting)

3 x duct clips

Please note: the colour of your fan may be slightly different to the one shown in the main image

Mixed Flow Fans

This fan has an exceptional build quality for its price point, with powerful motors that shift a lot of air for their size. They also feature two speed settings, giving you extra control over your environment if, for instance, grow room temps are too high.

Airflow Rates for Each Fan Size

4-Inch: 165 / 200 m3/hr

5-Inch: 248 / 284 m3/hr

6-Inch: 397 / 516 m3/hr

8-Inch: 690 / 840 m3/hr

Decibel Rating for Each Fan Size

4-Inch: 36dB

5-Inch: 41dB

6-Inch: 44dB

8-Inch: 54dB

Rhino Hobby Filter

Rhino Pros are known as the industry's go-to carbon filter. They're tried and tested products that do exactly what they're supposed to, killing smells stone dead. The Rhino Hobby is the Rhino Pro's baby brother - designed to do the same job, but at a lower pricepoint. In terms of performance, nothing is really sacrificed, but it should be noted that the Hobby Filters last for 9-12 months, compared to the two year lifespan of their bigger brothers.


Choose between aluminium or combi ducting. Aluminium ducting is great if you're on a budget, but we always recommend upgrading to combi ducting, which is stronger, lightproof and tear resistant.

How to Use this Kit

Check out the following blog post for a visual guide to installing extraction systems.

Make sure that you hang the system at the top of your grow area (to remove hot air) and make sure that ducting leads to an outside point. Try not to include any sharp bends in the layout of your ducting or you will reduce the effectiveness of your system.

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