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GLA GRO Aquarium CO2 Regulator

74 reviews Write a Review
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

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
  • 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

74 reviews

  • 5

    We like it:)

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

  • 5

    Love it.

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

  • 5

    Love the GLA Gro!

    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

    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.

    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

    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!

    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!

    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!

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

  • 5

    Cool co2 regulator

    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

    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.

  • 5

    Wonderful co2 regulator.

    This is a wonderful co2 regulator. Im new to co2 and reached out to GLA for advice and ordered this. Arrived quickly and packed with much care(thank you!). The instructions and video made it a walk in the park, so pleasant. Ive refilled only twice in the year and its been spot on perfect every time. I love it.

  • 5

    Very nice regulator worth the investment.

    This definitely improved my low tech aquascape. You’d be surprised to see how much better things grow with co2. I’m enjoying every minute of my planted aquarium.

  • 5

    We love it and bought 6!

    We started with one and now have 6 of these going in our plant nursery. These are really well made, heavy duty and super easy to use anybody could use one!

  • 5


    Great working kit here. Fits perfect in my space and has been consistent every day. I’ve refilled my cylinder twice in two years and aquascape has been glowing beautifully.

  • 5

    Very happy

    Couldn’t be happier! I came back today to buy another one lol. My first one is a little over a year old and it’s like brand new today. Works extremely well.

  • 5

    I love it!

    So perfect for my small space but wanted something reliable. This guy has been wonderful. Very pretty regulator and nice finish to it. It only took me a few minutes to install. I was shocked how easy it was. I felt confident after that lol. You will love this regulator its been just terrific.

  • 5

    Its wonderful

    I got this for a second tank upstairs and its been really nice. No issues, installation was simple and I like how well its made. Its almost a year old and looks brand new. Its super heavy and compact and no doubt it will last me forever.

  • 5


    The device works as advertised. I've purchased this item several times in the past, and the quality continues to impress.

  • 5

    Fantastic build quality and service.

    Its been a long time for my review lol. I have had this regulator for over a year now and its been just flawless. My tank and fish are always happy so that makes me happy. Ive even installed this incorrectly several times due to my idiocracy, and still works like a champ to this day. Its just been a real gem.

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