Rhino Ultra EC Hobby Extraction Kit
Rhino is the world’s leading hydroponics air filter manufacturer. Rhino Hobby carbon filters are made with the same virgin Australian carbon as the premium Rhino Pro range: RC412, but they have a shorter lifespan.
Rhino Hobby carbon filters feature a swappable bottom and duct coupler, and they should be turned around every 8-12 weeks to even out the wear, ensuring the filters last for their full 9-12 months expected lifespan.
What you get
| Rhino Ultra EC v2 | Rhino Hobby Filter | Accessories |
| 4″ – 275 m3/h | 4″ x 300mm | 5m Combi Ducting, 2 x jubilee clips |
| 5″ – 280 m3/h | 5″ x 3000mm | 5m Combi Ducting, 2 x jubilee clips |
| 6″ – 594 m3/h | 6″ x 300mm | 5m Combi Ducting, 2 x jubilee clips |
Which Size Kit Do I Need for my Grow Tent?
There is a (relatively) easy formula to determine which size extraction you need for your space, find out the volume in m3 (meters cubed) of your grow space with Width x Length x Height = Volume. Then, Volume x 60 = Air Movement Per Hour (this will refresh the air in your grow room every minute). Then multiply by a percentage to account for any bends in ducting, higher temps, or anything that will impede the fan power. A safe assumption would be to multiply by 1.5 to 2 (50% to 100%).
Bear in mind it’s always better to over-spec your fan and reduce its output with a controller. This gives you the flexibility to increase its output to maintain optimum conditions for your plants, for example, in the middle of summer.
Also, if you don’t over-spec your fan, it will have to run at 100% to maintain optimum conditions, which reduces its lifespan (run anything at 100% 24/7, and it’s not going to be happy!). You’re better off over speccing and running it at 60-80% power – that way, you also future-proof yourself if/when you get a bigger grow room.
