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Green Leaf Aquariums is a leading planted aquarium brand with 20 years industry expertise in: professional lifetime aquarium CO2 systems, the finest quality aquarium plant fertilizers, thriving aquarium plants & tissue cultures, and specializing in custom hardscape design

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  • Green Leaf Aquariums
  • Green Leaf Aquariums, LLC
    5200 NW 43RD STREET
    SUITE 102-264
    text/SMS:(833) 679-0910
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GLA PRO-DS-1 Dual Stage CO2 Regulator (Modular Manifold)

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Pressure Reduction



CO2 Distribution



GLA PRO-DS-1 Dual Stage CO2 Regulator (Modular Manifold)

Our GLA PRO-DS-1 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.

GLA PRO-DS modular CO2 regulators have paved the way in adaptive CO2 distribution. Our innovative modular manifold allows you to add (or subtract) manifold blocks with ease, so you can expand CO2 supply, independently controlled, to multiple aquariums. Our modular CO2 regulators flawlessly and easily adapt to the expansion of your aquarium system, allowing you to use one regulator for multiple tanks, so you can save money and installation footprint. When you invest in our modular CO2 equipment, you get a single regulator that can grow with you and last for years of planted aquarium enjoyment.

  • Professional dual stage regulator body
  • Dual stage CO2 regulator reduces source pressure in two steps to eliminate fluctuation in working pressure, as pressure drops in CO2 cylinder
  • Multistage stainless steel micron filtration inlet and outlet
  • Laser precision metal-on-metal valve seat. 
  • Integrated pressure relief valve (PRV)
  • 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
  • Premium quality pneumatic components
  • Dual gauge (tank volume and working pressure)
  • No end-of-tank dumps
  • Custom designed, pressure tested, and leak tested in the USA
  • 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 - 140 PSI
  • Tank/High Pressure: 0 - 3000 PSI
  • Modular Manifold: One block manifold for single aquarium, expandable to multiple aquariums (easily add or subtract manifold blocks to provide CO2 to multiple aquariums)
  • 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.

55 Reviews Hide Reviews Show Reviews

  • 5
    Aquascaping supplies at its finest.

    Posted by Eli Manning on 15th Sep 2021

    Now my 3rd GLA regulator but this one for my basement so I could not branch off from my other regulator. Great bit of kit, well made and super stable flow rates. GLA is a trusted aquascaping supply shop who knows co2 better than any other vendor. You can email,text and chat with them with a click of your mouse. Im a GLA fan boy for life lol.

  • 5
    Professional grade aquarium co2 regulator.

    Posted by John Lawrence on 10th Sep 2021

    Well designed and made. I like the ability to add modular manifold blocks without the need to buy another co2 system. I had my wife perform the install due to an injury. She passed with flying colors. The system is super smooth and perfectly set where you leave the settings. The big dual stage body makes my Amazon dual stage look like a kids toy. Go with GLA.

  • 5
    Best aquarium co2 system.

    Posted by Drew Bellingham on 6th Sep 2021

    So glad to find GLA, they are my new go-to planted aquarium store. This regulator arrived timely and was much higher quality that anticipated by a mile. Service was top notch who also helped with some added details for my system.

  • 5
    Outstanding quality co2 regulator.

    Posted by Ian Powers on 6th Sep 2021

    Outstanding co2 regulator. A truly wonderful experience. The regulator arrived timely, packaged very professionally, and quite lovely I might add. The installation process was very easy. This regulator feels very professional grade. I replaced my Amazon knock off with this GLA regulator and the difference is immediate. The GLA model for starters is twice the size, its internal design is true to that of a real dual stage. Dont fall for the toy stuff you see for cheap, I did and paid the price. The GLA design is a lab quality design at a very affordable price. Its even has better gas control than the regulator which is fully electronic. The GLA regulator is a workhorse with two internal diaphragms. Nobody else in the industry is using two internal diaphragms because of cost. Get passed the toy regulator idea and get a GLA regulator. Save your money, spare no expense and go with GLA.

  • 5
    The best co2 regulator on the market.

    Posted by Lee Parsons on 3rd Sep 2021

    I ordered this along with the co2 reactor and you will be hard pressed to find better quality and service. The service alone was amazing. Packaging was a work of art and I plan in keeping that. My daughter has already claimed the box but little does she know! Installing the regulator was painless. I used this even, Go with GLA, you will not be disappointed.

  • 5
    Outstanding co2 regulator.

    Posted by Javier Campos on 29th Aug 2021

    Beautiful well made design. This is the most accurate system I have used so far. I come from an electronic regulator which proved to be a fake. While its bubble count was rock steady, they have one massive flaw, the regulator. They use a soda regulator made by Cornelius. It has a dumping effect that raises the PSI. This increase in PSI did not effect the bubble rate because of the electronics. But, it did not control the volume going into the tank, why? Because the bubbles got much larger when the PSI was constantly increasing towards the end, basically dumping co2 via large volume bubbles. The only way to prevent this is with a dual stage regulator. I was happy to learn that GLA is a real 2 internal diaphragm dual stage. Thats why the body is double the size. I also learned that the more toy like dual stages are not true dual stage. They are fixed internal working pressure with secondary working pressure adjustment. They do not contain 2 internal diaphragms, only one. If you email GLA they have the schematics that explain it very well. Installing the regulator was easy, even comes with installation tools and servicing tools. The only thing I have to do is refill my bubble counter regularly. I wipe it clean every water change using plant based stainless steel cleaner, its amazing.

  • 5
    Amazing co2 regulator.

    Posted by Barbera Diego on 26th Aug 2021

    I was in a pinch because my previous regulator had failed and needed a replacement quickly. I emailed first and was repsonded to within minutes. I was told it would take at least 24hrs to ship. This was due to the QC process they have for every regulator involving Zaxis digital leak testing. I could appreciate this fact very much and was worth the wait. Delivery was still quick, and arrived in perfect working order and was a blessing to work with. GLA co2 regulators and service are unmatched by any experience Ive encountered. I will be doing business with GLA for as long as my tank exist. Im a proud momma of GLA co2 lol.

  • 5
    The best aquarium co2 regulator.

    Posted by Nathan Dietrich on 25th Aug 2021

    Im not even sure what to say, its the best aquarium co2 regulator Ive ever used. I own a few Amazon versions that are total garbage. I tried the co2art people but the service overseas to get my warranty taken care of was a nightmare. Thats when I learned about GLA and was blown away at the service and quality upon receipt. GLA is the top of the top, they invented the modular manifold. They also assemble everything in Florida. You can email the team and see for yourself. The photos they sent me of assembly by legit Americans blew my mind. I was more impressed with the fact they even go as far to repair other makes and models. They dont even advertise this but i thought it was amazing. They even showed my photos of terrible quality control with other brands and noted to me the reason you see this is because they are made and assembled in China. No quality control measures. GLA has the machines and tools to fabricate and repair. These other guys absolutely do not. You can bet your ass on that. Way to go GLA, Im impressed.

  • 5
    High quality planted aquarium co2 regulator.

    Posted by Victor on 30th Jul 2021

    I ordered this regulator with my PPS system about 8 weeks ago. The regulator, my god its beautiful. My previous dual stage from Amazon was absolute dookie. The GLA dual stage is easily twice the size and weight. It feels substantial, not like my other one. It feels good in your hands and when you go to adjust your bubble rate its super smooth. Love the water tight chord grip and LED.

  • 5
    Outstanding quality and service from Green Leaf Aquariums.

    Posted by Stacy M. on 25th Jul 2021

    I purchased on a recommendation from my LFS. I was using another brand of regulator prior that was more budget friendly and it ended up costing me so much more in the end. My husband was devastated. We reached out to Green Leaf Aquariums and we received expert help immediately. Not only that but they have a cool text service, literally GLA at your finger tips. The regulator arrived quickly, and installation was super easy. The needle valve on the regulator is an excellent flow curve. It makes tuning your co2 flow rate a breeze. The regulator is super nice, nicer than any other of my aquarium equipment lol. You can buy with confidence at Green Leaf Aquariums.

  • 5
    High quality through and through.

    Posted by Christian Romero on 1st Jul 2021

    Super high quality, very precise in all adjustments. I would like to stress the precision needle valve has a linear rate like no other I have used before. The Green Leaf Aquariums Co2 regulator needle valve is butter smooth and effortless. You can get your bubble rates lower than any other needle valve you see on those garbage units from Amazon or the like, that was my first mistake. Never again, GLA is the way to go.

  • 5
    This is an absolute fantastic piece of equipment.

    Posted by Niles Davis on 26th Jun 2021

    I had to recently replace my regulator and did not want to cut any corners this time. The value here is what you need to be looking at here. GLA equipment is second to none. Quality of the build is clearly evident. The installation process was similar to my last so it was super easy. Clear easy to follow set up guide as well. I had a question for GLA and saw they have this new text service and it was freaking amazing. You can ask anything you want and its like GLA is in the room with you. What a tremendous experience. Love you guys GLA-Team!

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