Systemair RVK


Fan: 4-inch (100mm) – 184m3/hr
Sale price£81.99

Systemair RVK Fans - The Toughest and Most Dependable in the Business

The Systemair RVK range of In-line Duct Fans are ideal for removing old air or supplying fresh air to your grow-space. Systemair fans are of excellent quality and are amazingly reliable.

Recommended Additional Purchases

Check out our CarboAir and Rhino Pro carbon filters.

How Systemair RVK Sileo Duct Fans Work

Systemair RVK duct fans are high-quality intake/outlet fans for extracting old, stale air from your grow-space or for supplying it with fresh air. The fans are housed in a lightweight yet robust fibreglass and plastic casing with external ports for easy connection to ducting, filters, airsocks or other accessories. The fan can be powered directly from the mains or via a fan-speed controller (not included) to regulate the fan-speed and air-flow. Systemair RVK fans are very well-made and reasonably quiet during use. A bracket is included for ease of mounting.

Airflow Rates

4-Inch: 184 m3/hour
5-Inch: 220 m3/hour
5-Inch L: 323 m3/hour
6-Inch: 428 m3/hour
6-Inch L: 720 m3/hour
8-Inch: 796 m3/hour
8-Inch L: 1008 m3/hour
10-Inch: 860 m3/hour
10-Inch L: 1134 m3/hour
12-Inch: 1360 m3/hour

To see our full Duct Fans range, click here



1 x Systemair RVK Sileo (choose your size above)

The Systemair RVK will require an IEC cable, you can purchase one here.


  • Systemair – Top In-line duct fan manufacturer
  • Removes stale air from your grow-space
  • Can be used to supply fresh air to your grow-space
  • Powerful – large air-flow for their size
  • Maintenance-free and highly reliable
  • Check out our complete extraction kits for money-saving deals

How To Use

How to Use Systemair RVK Duct Fans

Systemair RVK fans can be used to draw air out of your grow-space via a carbon filter or just ducting. The fan can be mounted in the required location using the bracket provided. Many users prefer to use bungees to hang the fan from, which usefully reduce noise and vibration. The fan should be mounted so that the required air-flow direction matches the arrow mark on the casing. On the output side of the fan, slide your ducting over the outlet sleeve and secure it in place with a Duct Clip (not included).

Repeat for the inlet side or a fast-clamp can be used to connect the fan directly on to a carbon filter. If a carbon filter is to be fitted it is important that the filter is rated at a similar air-flow as the fan. An electrical feed to the Systemair RVK duct fan is required which can be directly from the mains or via a fan-speed controller. This should be performed by an electrically competent person. A downloadable wiring diagram can be found under the "Attachments" tab above this description. Be sure the diagram is followed closely.

Do not under any circumstances put your fingers into the spinning blades of a fan, especially an in-line type. Even a small fan has enough power to cause severe injury and loss of fingers. Just don't do it, no matter how tempted you are. For Systemair RVK duct fans, follow the wiring diagram on the case moulding, do not match up the wire colours to the wires inside as they follow the European wiring code. Keep ducting runs as short as possible as every metre of ducting reduces the flow-rate that the fan can achieve. The more ducting attached, the lower the air-flow.

Bear in mind that a carbon filter will reduce the air-flow that your Systemair RVK duct fan can achieve by about 25% just on it's own. When turning a corner with ducting try to create a swept bend rather than a sharp knee as this will reduce air-flow by the least amount and also help to keep wind-noise down. To further keep wind-noise down to a minimum, stretch flexi-ducting out as much as possible or use acoustic ducting.

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