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GLA GRO Aquarium CO2 System

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GLA GRO Aquarium CO2 System
GLA GRO Aquarium CO2 System
GLA GRO Aquarium CO2 System
GLA GRO Aquarium CO2 System
GLA GRO Aquarium CO2 System
GLA GRO Aquarium CO2 System
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GLA GRO Aquarium CO2 System
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Pressure Reduction



CO2 Distribution


GLA GRO Planted Aquarium CO2 System

GLA's GRO CO2 system provides planted aquarium hobbyists with the essential CO2 equipment they need to grow a thriving aquascape. Our extremely reliable CO2 equipment allows you to focus on what's important, growing and enjoying your planted tank. Our GLA GRO CO2 System includes the following equipment:

  • GLA GRO Aquarium CO2 Regulator
  • 5lb CO2 tank, aluminum CO2 cylinder (ships empty). Configure your system with one or two 5lb cylinder tanks above.
  • Nylon seal
  • CO2 resistant aquarium tubing (10 feet)

Our GLA GRO CO2 Regulator is a compact and sleek, high performance everyday CO2 regulator for single aquarium installation. The GLA GRO CO2 regulator is built with premium components, perfectly tailored to your planted aquarium, for superior CO2 distribution. We design our CO2 regulators in the USA, handcrafted with premium pneumatic components to provide a distinctly reliable and innovative solution for CO2 distribution. Our CO2 engineers build and test each regulator to order and provide lifelong customer support for each and every regulator we build. Our innovative, forward thinking CO2 technology is highly rated in the planted aquarium community. We have pushed the limits of aquarium CO2 technology, setting a new industry standard for CO2 distribution. We are dedicated to providing professional CO2 regulators and aquarium CO2 systems to the planted aquarium hobbyist and to specialized industries seeking the best CO2 equipment available.

  • 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
  • Handcrafted by our expert CO2 engineers for everyday life, so you can enjoy your planted aquarium without worry.
  • We are dedicated to providing unparalleled CO2 technology and setting the industry standard of CO2 distribution excellence.
  • We are confident that our GLA CO2 regulators rise above and outlast the competition.
  • Installation: CGA320
  • Output Pressure: 0 - 70 PSI

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

57 reviews

  • 5

    Superbly built system from GLA

    Posted by Shane A. on 24th Mar 2024

    I have some co2 systems from Amazon and one my dad gave me years ago but none of those were reliable from the start. I opted for GLA based on reputation and man this system is nice, the regulator is very well made and not some junk ass paper weight. Flow control is optimal and GLA nailed it, its perfect.

  • 5

    Works great

    Posted by James Morgan on 5th Mar 2024

    Installed it today, and is working like a charm

  • 5

    Nice quality and a bargain of a price when you compare.

    Posted by Natasha Wilkinson on 27th Feb 2024

    I did a lot of looking around and even went to the local fish club meeting. Our club was surprisingly huge as it was my first time going, 198 people! Everybody spoke highly of GLA since they have been doing co for planted tanks since 2006. They were very helpful in getting me sorted out. My family aquarium looks so nice! It was easy to set up and its been a few months now. We have not had to touch it once. Thank you GLA!

  • 5

    We love this system from GLA.

    Posted by Jeff Arnold on 13th Feb 2024

    We knew wwe wnated to go pressurized co2 for our new tank and after days of research we decided to go with GLA. We are so glad we did. Its exactly what America needs today. These folks have been at this a long time and they are tried and true for decades. From what I understand they invented a lot of what you see developed today. Impressed by the customer service we took the plunge and our tank could not be so lush without the help from the co2 system and GLA's guidance. And guys, they have this neat text service I made my wife use lol. What a treasure, GLA. Worth every penny and more.

  • 5

    Phenomenal co2 systems from GLA.

    Posted by Amy Halbert on 9th Jan 2024

    We went all in on GLA co2 and we could not be more pleased. Very profesional, US based and they know their shit!

  • 5

    Well built and worth every penny.

    Posted by Kirk Jones on 3rd Jan 2024

    Much higher quality than I had anticipated. Flawless design and actually looks very nice under the tank. I love the fact its compact and dummy proof.

  • 5

    Awesome, every bit of awesome.

    Posted by Joshua Wallace on 30th Dec 2023

    High quality system and works phenomenal. Added a diffuser and a drop checker and I was set to go. Love the looks and how quality everything felt. Been super stable now for 7 months without any worries.

  • 5

    Co2 system at its finest.

    Posted by Patrick Irwin on 26th Dec 2023

    Pleasantly surprised on its quality and ease of installation. Using this on my new Waterbox system and it’s just beautiful.

  • 5

    Love the product, but don't need it. I've tried multiple times to contact customer service, with no response. All I want is an RA# to return the unopened, unused items.

    Posted by JohBean on 15th Nov 2023

    I wish GLA would respond to my text and email requests.

  • 5


    Posted by Sam on 13th Nov 2023

    Packaged very well and simple set up, once I had CO2 I was able to set it up very quickly! Love it.

  • 5

    Worth every cent and then some.

    Posted by Garret Davies on 6th Nov 2023

    Im not novice to co2 systems as this would be my 3rd go at high tech. Ive used a systems in the past and using them was a pain in the ass. I was always fooling with the system to get my bubble count steady, almost daily. It got so bad I had quit the hobby for a few months. Back in a new house and fresh new aquascape, introduced the GLA Gro system and I was completely amazed how effortless and easy it was. Ive not touched the bubble count in months! This system is steady as a rock and extremely well made. GLA support is second to none.

  • 5

    Worth every penny, we love it!

    Posted by Amy McPherson on 31st Oct 2023

    Our classrooms first co2 system and it went off without a hitch. We love how easy it was to get going and wathcing the response from the plants! Thank you to the team at GLA for all the support and quality made co2 system. :)

  • 5

    Love GLA Co2 systems.

    Posted by Craig Lemu on 8th Oct 2023

    Our 2nd full system from GLA. Our first one is still going after 7 years on our Angel tank. This system from GLA is a testament to GLA quality. A full US made co2 cylinder with a superb co2 regulator.

  • 5

    Easy Set Up, but tank is older

    Posted by Nicole on 17th Aug 2023

    This was really easy to set up for my first co2 system! The only issue I found was that the tank was almost a year old at the point I received it. The folks who filled it for me said it was manufactured 10/22 and I received it 8/23. Thankfully it's not expensive to get it hydro tested in four years!

  • 5

    GLA is my go to from now on!

    Posted by Brian Sharp on 3rd Jul 2023

    Superb system, all you need is a diffuser. GLA was very helpful at getting my needs taken care of. Everything is of premium quality. Lots of US made parts and lots of good hands on with the foils at GLA. We could not be3 happier with the performance of this system.

  • 5


    Posted by Javier Onaco on 8th Jun 2023

    I like this system very much. Very affordable and easy to install. Its all nice equipment, all the way down to the tubing and check valve. I use the GLA Infinite co2 reactor and everything working tremendous.

  • 5

    We love it!

    Posted by Greg Eugene on 15th Apr 2023

    Super happy with this very affordable high quality co2 system. GLA was very helpful getting me going.

  • 5

    Very nice quality and superb service.

    Posted by Theresa McPherson on 4th Apr 2023

    We are very happy with this system now that the old one is tossed away. Very well made and easy to use but the best part is this thing purrs like a kitten. You dont have to mess with it it just does what you tel lit to do without fuss, and I like that!

  • 5

    Sweet system from GLA.

    Posted by Seth Garland on 6th Mar 2023

    This was way more than I had bargained for. Very nice complete system. GLA is a stand up company and you can tell in the delivery experience alone. The regulator is beautifully made and very easy installation, 2-3 minutes? Very high quality I have no doubt will last a lifetime, I love it!

  • 5

    Wonderful bargain from GLA.

    Posted by Marissa Labou on 18th Feb 2023

    We chose this our our first co2 system and could not be happier. We were intimidated, but the installation instructions and video had us up and running in only a few minutes. Its been wonderful watching our tank mature into full growth.:)

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