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

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.