Aquarium Co-Op CO2 Regulator

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  • Dual Stage CO2 Regulator
  • Precision Needle Valve and Bubble Counter
  • Expandable Manifold for Up to 6 Aquariums
  • 1-Year, Hassle-Free Aquarium Co-Op Warranty

Grow aquatic plants faster by injecting pressurized carbon dioxide in your planted aquarium. Using the Aquarium Co-Op CO2 regulator will ensure a steady and reliable release of CO2 gas as it features a dual stage design. The two easy-to-read gauges show both tank volume and working pressure. Included is a bubble counter for easy adjustments of CO2 levels as well as a solenoid valve which can be plugged into a timer for precise timing of CO2 release.

Multiple manifold blocks can be added to this regulator to expand your CO2 system to multiple aquariums at once. Each manifold block features its own bubble counter for precise adjustment of gas to each aquarium individually.

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Customer Reviews

Based on 69 reviews
Kimble P. (Lafayette, LA, US)
CO2 regulator

This is a very well-made product. I’m so glad that I purchased this from you guys will do more business with you.

Nathaniel A. (Salt Lake City, UT, US)
CO2 regulator

It has been a great regulator. Haven’t had any problems with that, and it releases the CO2 in a consistent manner. I am very happy with it.

Bruce S. (Charlotte, NC, US)
CO2 Regulator

Very pleased with the CO-OP CO2 regulator. Shipping was fast, the price
was very good, the setup was easy and I'm especially pleased with the quality of the regulator. You can spend much more for a regulator that has the features and build quality of this one. Very pleased and would buy again.

Jason B. (Las Vegas, NV, US)

This reg is built well and priced right

Customer (Greenwell Springs, LA, US)
Loving it!

I’ve really enjoyed not having to worry about it honestly. I was making my own CO2 before this and using a pretty generic setup. But since going to a real CO2 bottle and outfitting with the Co Ops setup. It’s been “Set it and Forget it”. Thanks for great products and great videos, I’ve learned a lot in the last 1.5 years.

Thanks again,