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GLA GRO Aquarium CO2 Regulator

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GLA GRO Aquarium CO2 Regulator
GLA GRO Aquarium CO2 Regulator
GLA GRO Aquarium CO2 Regulator
GLA GRO Aquarium CO2 Regulator
GLA GRO Aquarium CO2 Regulator
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GLA GRO Aquarium CO2 Regulator
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Pressure Reduction



CO2 Distribution


GLA GRO Planted Aquarium CO2 Regulator

Discover the excellence of our GLA GRO CO2 regulator, crafted with precision for your freshwater aquascape. Compact yet powerful, this CO2 regulator promises top performance for your single aquarium setup. We take pride in using premium components that align perfectly with your nature aquarium needs, ensuring an exceptional CO2 distribution experience.

Proudly designed in the USA, our CO2 regulators are constructed with premium pneumatic elements. They're more than reliable; they're a benchmark in innovation for CO2 distribution. Every regulator undergoes rigorous building and testing by our dedicated CO2 engineers to guarantee quality. And with lifelong customer support for each regulator, you can trust in a product that stands the test of time.

Highly esteemed in the planted tank community, our forward-thinking CO2 technology has raised the bar. We aren't just following trends; we're setting a new standard in aquarium CO2 technology. Our commitment to providing superior CO2 regulators and systems isn't just for the hobbyist. It's for anyone in search of the best in CO2 equipment, a solution that's as professional and superior as your freshwater aquatic plants deserve. Our unwavering focus on quality, innovation, and customer satisfaction positions us as a leader in providing top-notch CO2 regulators and aquarium CO2 systems.

  • Streamlined Design: Our GLA GRO Nature Aquarium CO2 Regulator is a sleek, compact, and high-performance solution for single aquarium setups.
  • Optimal CO2 Distribution: Crafted using top-notch components, it ensures the perfect CO2 balance in your planted nature aquarium.
  • Quality Assurance: Each regulator is meticulously built, tested by skilled CO2 engineers, and backed by lifelong customer support.
  • Cutting-Edge Technology: Our relentless innovation has earned recognition within the planted aquarium community, setting new industry benchmarks.
  • Built for Enthusiasts & Professionals: Whether for home aquariums or specialized sectors, we provide unmatched CO2 solutions.
  • Commitment to Excellence: Dedicated to unparalleled CO2 technology, rising above the competition and setting industry standards.
  • Premium aluminum regulator body
  • Micro precision needle valve rotates 360 degrees
  • Innovative, optimal performance 'cool touch' solenoid valve
  • Premium GLA bubble counter with check valve to protect your equipment
  • Multistage micron filtration inlet and outlet
  • Laser precision metal-on-metal valve seat
  • Integrated pressure relief valve (PRV)
  • Premium quality pneumatic components
  • Custom designed, pressure tested, and leak tested in the USA
  • Primed for your next aquascape


  • Installation: CGA320
  • Output Pressure: 0 - 70 PSI
  • Includes: one nylon seal

Our Standards

Handcrafted Excellence
✓ exceptional care and pride in what we build
✓ bringing our passion to life

Elite Performance
✓ for your next aquascape
✓ and for every aquascape after that

Built to Last
✓ your everyday super CO2 regulator
✓ a regulator that is truly unmistakable

Our Guarantees

Installation Support
✓ dedicated expert installation support
✓ we are here to help you get started

Lifetime Warranty
✓ rock solid lifetime warranty
✓ your peace of mind guaranteed

Lifetime Support
✓ we back what we build
✓ we will be here to help you into the future



Limited Lifetime Warranty: GLA GRO CO2 Regulators are covered under a limited lifetime non-transferrable warranty against defects in materials and workmanship, when used in strict compliance with Green Leaf Aquariums, LLC (GLA) recommended usages, while the goods are under the ownership and control of the original purchaser. The lifetime warranty does not guarantee that the product will perform for the lifetime of the buyer. The actual time that the product can be expected to perform is determined by the highest standard of working time for products of its kind and per the buyers usage and application. If the product is discontinued, the warranty will remain a limited period longer, and then claims will be warranted with a similar product or credit, as determined by GLA, and appropriate to the product's age and condition at time of claim. GLA does not assume any responsibility or make any warranties with respect to items which are modified, altered, abused, misused, damaged, or serviced by unauthorized personnel. The warranty is void if at any time a wrench is used on the regulator, for any purpose, other than to tighten the regulator to the CO2 cylinder. It is important to read instruction guide provided when installing product, for damage due to improper installation is not covered under the warranty, although GLA will happily provide support and service for the product at a determined repair cost.

Customer Reviews

83 reviews

  • 5

    Love it!

    Posted by Mike Jinacus on 10th Jul 2024

    Super happy with GLA service and products. This kit has been solid as one can ask. Can’t wait to get my hands on their Pro DS. That’s coming up next!

  • 5

    Really nice quality for the price!

    Posted by Brooke Sulima on 14th Feb 2024

    The quality of the regulator is super nice and has a really nice look to it!

  • 5

    GLA Quality!

    Posted by Jeremy on 1st Feb 2024

    This regulator will not disappoint. I have a couple other GLA regulators and tried this one for a new system. Very well built.

  • 5

    I Recommend GLA!

    Posted by Rebecca James on 19th Jan 2024

    Very happy, speedy and high quality equipment. Videos were a nice touch even though you don’t need them they were nice to have. Even cooler was the text message service they have, wow!

  • 5

    Love it ?

    Posted by Adam Winston on 17th Jan 2024

    Speedy delivery and fits right under my 29g. I already gave a used 5lb cylinder and was up and going in a few minutes, like how effortless everything is going, super smooth sailing here!

  • 5

    Superb co2 regulator.

    Posted by John Destin on 16th Jan 2024

    Breezy installation, loved the video links they provide. The bubble flow rate adjustment is like no other valve I’ve ever used before. Super smooth and very precise flow vs the crazy crap I deal with from the cheap stuff. I’m stoked!

  • 4

    C02 reg

    Posted by Kevin on 5th Jan 2024

    Great regulator,but I wish it had a dial to tell you when the tank is low.

  • 5

    Very nice, high quality piece.

    Posted by Mark Aldburg on 25th Oct 2023

    Was quite surprised considering the price. Comes with a very heavy duty regulator body. The bottle connection is nickel plated with a brass sintered filter, thats lab grade stuff. Installation was easy, thanks for the video GLA!

  • 5

    Lovely co2 regulator.

    Posted by Jessica Murphy on 24th Aug 2023

    Wonderful replacement from my Amazon garbage, it took a crap only 3 months in. Upon advisement of my local club I chose GLA as my new source. We couldn’t be happier, huge difference in what Amazon is putting out. The service was amazing no less.

  • 5

    We like it:)

    Posted by Magan Proser on 16th Apr 2023

    Exactly as described and super easy to install. Very happy:)

  • 5

    Love it.

    Posted by Dave Forester on 4th Apr 2023

    Love this GLA regulator, very compact and high quality. I would definitely buy this again or the DS series.

  • 5

    Love the GLA Gro!

    Posted by Yani Joseph on 18th Feb 2023

    We love it! Super easy install in minutes and a needle valve like nothing I have ever used before. GLA valve is amazing, so easy and smooth all the way.

  • 5

    Extremely happy

    Posted by Rob on 19th Jan 2023

    GLA quality on a budget. I could have chose a dual stage regulator within my budget with more options from other manufacturers/competitors but since this is my first regulator for a single 20 gallon tank I decided this was the best bet for me. No matter how much research you do ; or how many YouTube videos you may watch you can still run into trouble setting up your first c02 system and YOU ARE going to have questions. GLA is there to help and quickly answer your questions and get your c02 up and running. What you get is an extremely high quality regulator; bubble counter , tools, instructions and excellent customer service. Everything from the packaging to the regulator itself screams high quality. (Even the tape they use on the shipping box is delightful to look at ) . I’ve had mine up and running for almost a month and my plants look ultra healthy and are growing so fast , I think I’ve got my money back from trimming and replanting as opposed to buying more plants !

  • 5

    Very nice and very nice needle valve.

    Posted by Fabian Bustamante on 24th Sep 2022

    Much improvement form my old regulator. More precise and to me easier to adjust bubble rates far more accurately. Quality is very nice and feels very heavy duty. I will be buying another one for my 80g next week!

  • 5

    Best Regulator ever

    Posted by Antonio on 17th Sep 2022

    From the moment you open the box you realize the quality of the product and the dedication to the customer. very well built good and solid materials super easy to assemble and works perfectly. I have only been educating myself and growing in this fantastic hobby for a year, and I was always interested in climbing one more step or jumping whatever you want to call it and I am not sorry I did it with this CO2 regulator, 100% recommended I spent hours reviewing thousands of pages and options and this is the best price-value relationship, the product you receive is incredible

  • 5

    Awesome co2 regulator!

    Posted by Damian Harris on 12th Sep 2022

    Loving the needle valve on this regulator. I have an old GLA regulator from 15 years ago with an Ideal metring valve. That needle valve was $80 alone! Well, this entire regulator is only $100 and the needle valve performs with the same precision. Amazing regulator!

  • 5

    Love it!

    Posted by Bryan Costello on 25th Aug 2022

    Its been terrific, no complaints here except I need another one for my new tank or I might just bite the bullet and go with the DS-2!

  • 5

    Very nice upgrade to GLA!

    Posted by Cliff Coleman on 23rd Aug 2022

    Loving this regulator. Its been steady since day one, love it!

  • 5

    Cool co2 regulator

    Posted by Ken Brill on 16th Aug 2022

    Does everything I ask of it. Its even taken some abuse due to my clumsy negligence. This thing is a compact powerhouse. I abuse it and it feeds my plants with gentle kisses of co2 effortlessly. GLA is the real deal, dont settle for less.

  • 5

    Super nice co2 regulator

    Posted by Blake Crenshaw on 9th Aug 2022

    Couldn't believe it when I opened the box. Super heavy and very heavy duty feeling. All very compact and works very well, no issues 7 months so far.

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