Aquarium CO2 Reactor - 16/22mm


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External CO2 reactor for high efficiency CO2 dissolution by internal whirlpool waterflow, allowing 100% CO2 dissolution in aquarium water. Made of highest quality food grade materials.

  • mount outside aquarium tank, inline within outflow tubing of canister filter

  • fits tubing size 16/22mm ID/OD (inside diameter /outside diameter)
  • height: 15 inches (375mm)
  • diameter: 4.5 inches (116mm)
  • volume: 2.5 liters

6 Reviews

Long 19th Apr 2020

CO2 reactor

I just set a new tank got an additional manifold block. I want to try out the co2 reactor. I read a lot about how efficient the co2 reactor is. I wanted to give it a try. I like the fact that the reactor is very big and stand on it's own. I added a small pump to the reactor. I ran the return hose line into the sump pump. The first few hours the water is swirling inside the reactor. So it makes a lot of noise. Once the reactor filled up. There is absolutely no noise. On the positive side to the reactor. You don't have to see the tiny bubbles floating all over the tank. You don't have to maintain it like you have to with the atomizer. I have been running it for a few weeks now.

Jason Short 12th Feb 2020

Very Happy

Excellent build quality and easy to follow instructions. It takes all of 3 minutes to install. This co2 reactor is much larger than any other reactor I have ever seen or used. Perhaps thats why it works so well. The way the whirlpool motion happens inside the co2 reactor is quite cool. This is what gets the co2 100% saturated. I run a fairly high bubble rate on my 180g tank and this reactor has no issue handling this tank. I will be buying another one as soon as my tank arrives next week. Very happy!

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