RVK Extraction Fans

In stock online
Standard Delivery £6.95*
Free Delivery - orders +£65 Free Delivery - orders +£65
Plain Packaging Used Plain Packaging Used
Click and Collect Click and Collect
Product Name Qty Price
RVK 100mm (4") A1
RVK 125mm (5") A1
RVK 150mm (6") A1
RVK 200mm (8") A1
RVK 250mm (10") A1
RVK 315mm (12.5") A1
RVK 125mm (5") L1
RVK 150mm (6") L1
RVK 200mm (8") L1
RVK 250mm (10") L1
Similar Products
  1. Electric Cable
    Electric Cable

    From £0.85

  2. Plug
    Plugs & Fuses

    From £0.20

  3. Jubilee Clips
    Jubilee Clips

    From £1.10



We all know the importance of good air exchange for indoor grow rooms to supply your plants with CO2 rich fresh air, to extract old, stale air and to also help with odour control. Good intake and extraction can also help manage room temperature and humidity levels, which is also a vital to getting optimum performance from your hydroponic equipment and also your plants.

The RVK in-line duct fans by SystemAir are one of hydroponics most recognisable names for manufacturing powerful, efficient and with low noise, grow room intake and extraction fans. They’re available in various sizes from 4” (100mm) through to 12.5” (315mm) and with two different power outputs, A1 (lower) and the L1 (higher).

These RVK extraction fans are made from extremely durable and tough 30% fibre glass reinforced polypropylene with an IP44 rating. RVK’s are also compatible with speed controllers, such as Variac and care should be taken matching your intake and extraction fan. If you’re in any doubt call us for free on 0800 038 7100 and we’ll advise on what intake and extraction fan would best suit your grow space.

A1 RVK fans have the following air exchange rates:

  • 100mm/4” - 175 m3/h
  • 125mm/5” - 225 m3/h
  • 150mm/6” - 420 m3/h
  • 200mm/8” - 750 m3/h
  • 250mm/10” - 845 m3/h
  • 315mm/12.5” - 1300 m3/h

L1 RVK fans have the following air exchange rates:

  • 150mm/6” - 680 m3/h
  • 200mm/8” - 950 m3/h
  • 250mm/10” - 1000 m3/h
  • 315mm/12.5” - 1800 m3/h

All RVK duct fans also come with a 12 month guarantee.


RVK fans are not wired therefore you might need to order a length of electrical cable, 2 core for 4” and 5” fans or earthed 3 core for 6” fans and above, along with a 13amp plug.

Delivery & Returns
Free Delivery
We are pleased to offer free standard shipping to UK Mainland on all orders over £65.00 *Heavy item surcharges are still applicable.
Next Day Delivery
In a hurry for your order? Order before 1 pm Mon - Thurs for next working day delivery *subject to stock availability T&C's apply.
Different delivery address?
Do your goods need shipping to an alternative address? If so, paying by bank transfer gives you the freedom to have them delivered to anywhere in the UK.
Free Returns
Faulty or damaged item? No problem, contact us on 0800 038 7100 or email customer service and we can arrange a free collection.
Plain Packaging
All parcels, no matter how big or small, are dispatched in plain packaging using black wrap that's secured using 'fragile' tape.
How to Pay
Credit / Debit Cards
We accept all major credit and debit cards. Please note: When paying by credit card we can only ship to the card statement address.
Simply select this option at checkout if you prefer to pay through PayPal. Please note: When paying by PayPal, we can only ship items to the account owners confirmed address.
Bank Transfer
Select the option for Bank Transfer at checkout if you wish to receive your item anywhere within the UK. Please use your order number as payment reference.
Split your purchase into manageable payments. Buy now and pay in 30 days or in three interest-free instalments with Klarna.
Click & Collect
Collect your online orders in as little as under an hour*! Simply pay online, choose your store & collect for free! Available from Manchester & Huddersfield (*subject to stock availability).
Brand Global Air Supplies
You must be logged in to ask questions.