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GLA PRO-DS-1 Dual Stage CO2 System (Modular)

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GLA PRO-DS-1 Dual Stage CO2 System (Modular)
GLA PRO-DS-1 Dual Stage CO2 System (Modular)
GLA PRO-DS-1 Dual Stage CO2 System (Modular)
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GLA PRO-DS-1 Dual Stage CO2 System (Modular)
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Pressure Reduction



CO2 Distribution



GLA PRO-DS-1 Dual Stage Complete Aquarium CO2 System

GLA's PRO-DS-1 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 PRO CO2 System includes the following equipment:

  • GLA PRO-DS-1 Dual Stage Aquarium CO2 Regulator (modular manifold)
  • 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 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)

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

61 reviews

  • 5

    Green Leaf Aquariums superior co2 system.

    Posted by Elfran Choukun on 24th Apr 2024

    Many systems had over the decades, some work meh others barely at all after only a few months. I now have GLA co2 system 1 year 8 months and it’s unbelievable. Superior quality and craftsmanship. Customer service was pleasant and will be doing long term business. Buy GLA

  • 5

    Top of the line co2 system.

    Posted by Andrew Hewes on 27th Feb 2024

    I already have one co2 system in place from GLA's competitor. it still works, however I do have to wrestle it which is not my favorite. So I decided to go with GLA, and now I see what the fuss is about. Its a different ball game entirely, finer precision in the needle valve, better psi adjustments which to me was a game changer. It is so smooth to operate. More importantly a lot of the stuff is US made and designed, all the way to the GLA co2 tubing. The GLA regulator is one of thos piece of equipment you just want to take care of and know it has your back with repeatability and reliability. Its a high quality piece of the OG's of co2 system.

  • 5

    Buy GLA Co2 System.

    Posted by Ernesto G. on 9th Feb 2024

    I made the mistake of buying cheap from Amazon, nightmare situation. Noting worked well, caused havoc in my aquarium due to poor quality in the build. After getting in touch with GLA and receiving my system, its been night and day. Works so smoothly, no BS customer support. The new era in support where they dont put up with no bull crap lol.

  • 5

    We are in love with GLA, aquarium products of course lol.

    Posted by Tania Nieves on 25th Jan 2024

    We are big fans of GLA and this system has done amazing things for our aquascape. Its looks brilliant under the tank and has done wonders for our plants. GLA has us hooked!

  • 5

    Highly recommend GLA Co2 systems.

    Posted by Terry Wilcox on 19th Jan 2024

    Pleasant experience with GLA. Very friendly staff with speedy delivery. Upon receipt, packaging was exceptional, something you can appreciate these days. We filled the cylinder and were up and going the next day. We use the GLA co2 reactor and could not be happier. If your looking for high quality co2 system you cant buy on Amazon look no further, this is the real deal. Thanks GLA

  • 5

    So glad I went with GLA.

    Posted by Justin Pownie on 8th Nov 2023

    After spending what felt like forever planning my 120cm tank and researching and emailing every vendor who would help with with co2. GLA stood tall amongst the rest. Real quick, I work in product development fora a fortune 500 company and there are a few things to remember. You cant put a price on experience and knowledge. That means GLA has more years of knowledge about co2 systems and how they fit in every scenario. I learned that GLA paved the way for what you see in co2 systems today. I even verified this with their Facebook page, and you really have to scroll back years to see it. GLA is the pioneer of the modular manifold co2 system. Everything else is just a replica of their work. I can relate to this in a big way, obviously. Knowing all this is why I chose GLA, the original true full sized dual stage regulator and modular manifold system. I went to a few LFS around the city and I was able to take my GLA regulator with me to compare it to the in-store brands. I can say this with 100% clarity, there is no comparison. GLA is full sized with two internal diaphragms. PSA! I saw Fzone,Co2-Art,UNS, all 3 of these were exactly the same to eachother. These were very tiny regulators I was surprised so many wan to use them(cheap). To me they looked like something you win in a vending machine lol. You just have to hold them in your hand to see what Im relaying in this review. If you ever look at those cheap knock off brands, you will notice they are the exact same, flat and cheap. Thats the very best way to describe them.

  • 5

    Top of the line

    Posted by Colin A on 23rd Sep 2023

    Decided to spring for the industries best and I’m glad I did. Setting up my first CO2 system ever for a 40g planted tank. David and the team at GLA provided top notch service including customizing the color of my CO2 tubing and mailing a missing price of the order at no charge (I was fully transparent that I couldn’t find the part and was not sure if I accidentally discarded it or it wasn’t included in the shipment. They took care of it without any issue). I’m fully confident that this setup will last for a lifetime! Many thanks to the team at GLA

  • 5

    Thank you GLA!

    Posted by Leslie Melendez on 29th May 2023

    I will try to make this short but sweet because GLA customer service was exceptionally patient and nice to us. We needed a system in a hurry because we recently setup our 2023 IALPC aquascape and was reading for photos when we noticed our drop checker was not moving beyond blue, it was before and all the sudden it was not. We contacted the company we ordered from but there was a delay because we did not realize they were international(not US based). Once communication was underway they sent a replacement and all was good, so we thought. $ days later we started to experience the same issues with the co2art regulator. This time however the solenoid was not receiving power no matter what we did. After much frustration we gave up and put the regulator to bed with all of our other aquarium garbage. Fast forward to now because we were about to call it quits. My husband has spent tens of thousands on this aquascape at 180cm and time was running out. When the GLA system arrived we knew right away, this was quality. The GLA system is not even remotely the same category of co2 system. The best way I can describe this is better said by my husband. In his words, Co2art is a blatant knock off of GLA's superior product. Whats more strange is we dont know why so many told us to go check out Co2art, its been absolute garbage and in our opinion a waste of global resources. After drooling over the GLA system its been up and running everyday without a hiccup. My husband even polishes the GLA system under our tank(full Infinite filter,reactor and DS system). Its his pride and joy and we are honored to support GLA, the original US based company who invented everything you see. Dont be misguided like we were, go with GLA you will not regret it.

  • 5

    Aquarium Co2 System

    Posted by Patricia Gadkins on 4th May 2023

    Loving our GLA co2 system. I was referred to from Planted Tank Forum. I was clearly frustrated with my Co2art co2 regulator and the people the pointed me here. Now this is only my second co2 system, and I would not consider Co2art a co2 system. Especially after having the GLA to see first hand. GLA is so much better quality all around. You can clearly see the build structure alone with GLA is much nicer than co2arts. I now have trouble free co2 in my house. Folks, buy once and go with GLA, because all the stuff they have is nice!

  • 5

    This is the best co2 system for aquariums.

    Posted by Dominic Tarduneo on 6th Apr 2023

    I have an electronic carbon doser and its an absolute shitbox. I then purchased the Co2Art regulator, yet another shitbox. I now have several shitbox regulators that hold no candle to GLA. When I got the GLA I just knew the fight was over. Whatever GLA has built in this regulator its doing it right! Ultra butter smooth flow control va absolute madness. With the Co2Art every time the temp changed in the room the bubble rate would change, WTF! This GLA regulator is wayyyy bigger and is 100% a more substantial build. Don't settle for a shitbox, buy GLA!

  • 5

    This is the best co2 system available.

    Posted by Phil Bossman on 4th Apr 2023

    This is not my first but I have a feeling it will be my last. I have a collection of co2 systems since being in the aquarium hobby from the Dupla days. I also have many of GLA competing brands in my house so this review is well merited. My experience with GLA was like no other, from customer service to delivery, which was processed exceptional fast. Arrival of the package I could tell I was in for a treat because GLA packaging was very nice, its was pretty. GLA tape was even nice! Opening the regulator I could tell right away what I was working with. GLA regulators dwarf all their competitors in terms of actual size. GLA seemingly has a legit non-toy like regulator. Extremely well made and the design is flawless. As a veteran in co2 I was set up in minutes, and let me tell you. The system is butter smooth, none of the Amazon or Ebay specials compare because I have those, and you know who Im talking about. Kudos to GLA for staying true to what aquscapers are looking for. Stay innovative GLA we love you guys!

  • 5

    GLA is the super co2 system.

    Posted by Angelo Masi on 19th Feb 2023

    I love this regulator, no gimmicks and very solid. Much larger than my crappy one and so much better performance. This system was a good buy and has been solid since day one. I do nothing to it, only clean it to keep is shiny and new. I like the US representation with many US made products that come along with the system. Everything arrived packaged very professionally, nothing like amazon. Purchasing from GLA was an absolute pleasure, great company with fantastic support.

  • 5

    Go with GLA co2 systems.

    Posted by Sarah J. Wallace on 8th Feb 2023

    It only took me one mistake to know I should have gone with GLA from the start. The support system and experience left me refreshed after my previous with a GLA competitor. I dont know much about co2 systems but there is one thing I noticed about this co2 system compared to my other one. It has a level of finesse that just oozes quality. My bubble control was leaps and bounds in easy control. I may not know co2 systems very well but I can tell you GLA co2 systems are worth every penny. You simply will not get the same quality and service with anybody else. Just like GLA told me, stick with the pioneers of this system and you will be left extremely happy.

  • 5

    GLA is the best of the best in co2 systems.

    Posted by Amy Rochester on 15th Jan 2023

    Just retired my Amazon co2 regulator for this epic GLA system and boy, what a difference. This regulator is built much more substantially than my 2 previous co2 regulators. Its literally 3x the size and feels like a real piece of equipment. My Fzone regulator felt like a paperclip and would not hold a steady bubble rate without daily human interference, I hated it since day one. After installing GLA co2 system I knew right away, it was a blessing. Its been handsfree ever since, we love it!

  • 5

    Top shelf co2 system from GLA.

    Posted by Hassan Muhammad on 24th Oct 2022

    Very satisfied with GLA and GLA products in general. New house required all new hardware and must be of best quality and its presence must be appealing. GLA co2 system checked all these marks and is worthy of a 5 star review. I have a long history with co2 system and this space required the best and this is it. Much higher quality regulator body and valve system. Cleaner less bulky design. The solenoid, very very nice. They incorporated a clear housing using a liquid tight chord grip. IP67 all the way. Stainless steel gauges and high quality cylinder with present dating good for 5 years. The tubing we received per our spec in grey color was a nice touch to the installation. Our opening is next month and the space looks terrific. We added the GLA stainless filter and co2 reactor and it is the best. Go to GLA, they are the real pioneers of this new generation of manifold co2 system.

  • 5

    One bad ass co2 system.

    Posted by Cameron Bojanski on 30th Sep 2022

    What can I say, its GLA. This kit is super nice. Very well made all around. Lots of American ingenuity from GLA. Fantastic warranty but I doubt I will need it. This thing just pumps out co2 with ease and without any intervention on my part at anytime until time to refill. Over the years I have used many co2 systems. This year is my second GLA system because I loved the warranty and my old 2008 system from GLA. These guys just know what they are doing. They invented this concept of modular co2 systems so aint nobody better at knowing them inside and out like GLA. Because all the others are just riding GLA's coat tails.

  • 5

    Big upgrade from my co2art regulator.

    Posted by Kate J. Anderson on 3rd Sep 2022

    I just upgraded the tank and filter and at the time was already having issues with my co2art regulator. I was debating sending it back to Europe for repair but the cost was astronomical. After talking with friends at our local fish/plant club I was referred to GLA. I dont know why but this GLA regulator is so much larger than the co2art regulator in all directions. Makes it feel like your using something of substance, vs the more toy like feeling with co2art. It felt like it came out of a vending machine and that would explain its cheap cost and functional issues. This GLA regulator handles everything so much better. I dont mess with it at all but Im always looking at it to make sure its not spazzing out. If your looking to upgrade look no further.

  • 5

    The best of the best.

    Posted by Jim Bancroft on 30th Aug 2022

    The best co2 regulator Ive ever used. Easy to install, silky smooth operation and rock steady.

  • 5

    Premium quality co2 system.

    Posted by Erica McMillan on 18th Aug 2022

    We spent a few weeks looking over options and in the end went with GLA. After contacting customer support discussing our requirements we landed here. This is a very well put together system. Granted it does not come with a diffuser, its for good obvious reasons. Everything in the box was very well packed, like when you mom packed your lunch box. Everything was just neatly nested. It took us only a few minutes to install and had co2 in the plant beds in no time. Its been working superb for going on 9 weeks now. I keep is clean with a microfiber cloth with some plant based stainless steel cleaner. It helps keep the dust off and keeps nice and shiny new looking. Its the nicest piece of aquarium equipment we own and our tank is 180g. Thanks GLA!

  • 5

    Outstanding build quality.

    Posted by Jason King on 16th Aug 2022

    Really enjoying GLA's dual stage co2 system. I would rate it more stars if they had them available. Since replacing my old regulator things are much more stable and I no longer need to utilize a pH controller. I not use a simple Bluetooth timer to automate my co2. I can even control if from my phone in terms of turning it off or on if required. Ive been aquascaping for many years and used several co2 systems in the past. This GLA kit really stands out in many ways. The regulator is packaged like an egg. Setting up was a few minutes of bliss. I did start with a fresh new diffuser this time going with GLA's new stainless steel co2 reactor. I wish I could post pictures of GLA's co2 system and reactor in my cabinet. Its a sight of beauty. Your going to love your GLA system. You can tell they enjoy building them.

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