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GLA GRO Aquarium CO2 Regulator

54 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
Current Stock:






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

54 reviews

  • 5

    Exceptional quality and service.

    Very high quality, heavier than you would expect. Its super dense, installation was easy and my tank is pearling!

  • 5

    Super nice I love it!

    Super fast shipping,great packing and installation was a sweet breeze. Loving GLA products:)

  • 5

    Small and mighty.

    Super nice and very well designed. It came with tools and easy to follow instructions. I like that this regulator fits every cylinder available. Its been terrific since we've owned it.

  • 5

    Brilliant and easy co2 system.

    So simple and easy to use! Exactly what I wanted.

  • 5

    Precise and quality to boot.

    I really like these regulators. Very well made and the needle valve is just fantastic. Now I’m eying the new Mini-DS

  • 5


    Good directions Very accurate easy control

  • 5

    Buy with confidence because this bay rocks!

    Compact,heavy duty and precision flow. I love this GLA co2 regulator. I decided to bypass the bubble counter because I simply did not need it. It comes ready for a factory tubing fit directly to the needle valve. I secured it via the bubble counter tubing grip nut for a factory fit. Its not even more compact and in my opinion sleek. Working with GLA was an absolute breath of fresh air.

  • 5

    Love it!

    As always, fast delivery and terrific products from GLA. A+

  • 5

    Beautiful well made co2 regulator.

    My first co2 regulator go me lol! Seriously though, its been amazing. I wasn't sure of my tank warranted the co2 but my plants are happier and I can now grow a much more wide variety of plants. I have never installed one of these so I was a bit nervous at first. I even had GLA on text for stand by, it was like no other customer support I have ever experienced. Thankfully I did not need any help. I was caught off guard on how easy it was, I even questioned myself several times. It was a tremendous growing experience for me. As a beginner I can assure you this system is flawless. It came with everything I needed but most admirably was the customer support.

  • 5

    Stellar co2 equipment from GLA.

    Long time veteran customer of GLA since 2006. This compact GLA regulator is extremely well made and super easy to use. Its compact fit looks and fits great in my minimalistic cabinet. Bubble rate is rock steady and effortless to tune. Came with a wrench and sweet decals!

  • 5

    Wonderful compact co2 regulator.

    Pleasantly surprised with this GLA co2 regulator. Great packaging and speedy delivery. Came with necessary tolls for installation,manual and stickers. Upon opening you will notice off the bat its weight, nice and heavy. It took me a few short minutes ot get it installed and I was off and pumping. Super easy installation and its purring like a kitten 7 months later. Bonus, this model will fit all cylinder types! Whats not to love about this?

  • 5

    My first co2 system success!

    I finally caved and went with co2. Upon advisement of my colleagues to contact GLA for a complete system. I sent several emails for 3 days to make sure I was getting exactly what I needed. They were patient and very helpful. They were supportive even during the journey of my aquascape. They were with me every step of the way. I have never recieved this level of service for anything. Not even buying my own home. Cheers to GLA and team, you guys are wonderful and this co2 regulator makes my aquascape glow with brilliance.

  • 4


    Great regulator, I would have gone dual stage if I purchased my first regulator again. Only thing I did not like was that the instructions did not say the solenoid could rotate so I was confused installing it because the tank was in the way. quality durable feel and smooth knob operation and co2 production.

  • 5

    GLA GRO Regulator

    Well made and engineered. Easy installation and the regulator works like a charm.

  • 5

    Lovely aquarium co2 regulator.

    Loving my new GLA Gro regulator. Compact and heavy duty. Instructions were very easy to follow. Up and running in just a few minutes. Rock solid.

  • 5

    Aquarium co2 regulator for any co2 cylinder type.

    That is precisely why I went this way. Im starting out with small disposable bottle but I know I will be moving to a 5lb next year. This compact regulator is surpassingly very heavy. The bubble counter and needle valve are very smooth and effortlessly adjust where you need it.

  • 5

    Compact workhorse!

    Compact,precise and well made. Cant ask for more than that. Great price and good service.

  • 5

    Brilliant co2 regulator.

    Wonderfully crafted compact co2 regulator. My main reason for this purchase was that this regulator will work on any cylinder type using GLA adapters. Very sleek design and the unit weighs like brick. Beautifully packaged I must say. Tune-ability of the bubble rate easily done by the precision needle valve. I plugged the solenoid into a bluetooth timer and that was that, ready! Cheers, Simon

  • 5

    Excellent quality speedy delivery.

    Great co2 regulator for my 80g. I wanted something that came with customer support and GLA's service was second to none. Fancy packaging and easy installation. Your going to love your GLA regulator.

  • 5

    High quality co2 regulator.

    My first time using co2 in my planter aquarium and things are growing great. Super easy install and wonderful quality. I didn’t get the drop checker they recommended but I totally needed it and ordered one the next day. Make sure if this is your first time that you use a drop checker. It will be your guiding light to adjusting your co2 levels.

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