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GLA PRO-DS-1 Dual Stage CO2 Regulator (Modular) (DIN477)

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GLA PRO-DS-1 Dual Stage CO2 Regulator (Modular) (DIN477)
GLA PRO-DS-1 Dual Stage CO2 Regulator (Modular) (DIN477)
GLA PRO-DS-1 Dual Stage CO2 Regulator (Modular) (DIN477)
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GLA PRO-DS-1 Dual Stage CO2 Regulator (Modular) (DIN477)
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Pressure Reduction



CO2 Distribution



GLA PRO-DS-1 Dual Stage CO2 Regulator (Modular Manifold) (DIN477)

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: DIN477 (EU, AU, UK)
  • 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.

Customer Reviews

8 reviews

  • 5

    Superior Co2 system from GLA.

    Posted by Pete Inygo on 8th Jun 2023

    While more investment, its very clear to me the quality in GLA co2. You will notice right away when you handle the system. Very sturdy and more robust in size. The flow adjustments are very smooth, so much to like in GLA.

  • 4

    Regulators and customer service

    Posted by John on 4th Mar 2023

    I’ve been using your regulators for years with great satisfaction. Since I moved to Asia I could not get a quality regulator. I purchased 2 more and picked them up while I was in the USA. Unfortunately it was suggested I buy the Din type for Thailand. I just got back and went to install and as it turns out Thailand is CGA. Disappointed in the recommendation.

  • 5

    GLA Pro

    Posted by John on 25th Feb 2023

    I had great experience with GLA while living in the USA. Moved to Thailand 2 years ago and have been struggling with poor quality regulators made in china and finally decided to go back to the best!

  • 5

    Beautiful work by GLA.

    Posted by Noel Ali on 23rd Aug 2022

    I order to replace my garbage unit I have now. It cost more to ship to me in Germany but it was worth it. It arrived timely in only 7 days. I was quick to notice the solenoid system on the GLA was very nice, very high quality. I should have went with GLA from the start.

  • 5

    Absolute best in the aquascaping hobby.

    Posted by Ruben Casseras on 29th Jul 2022

    After struggling with the BS Co2art and Fzone for a year of pandemic hell. I don’t use any crazy diffusers and I only feed two aquariums with one regulator. Neither of these were able to stay consistent and the bubble counters would break on the regular. I was over this consistent problems so I chose to buy from American

  • 5

    Brilliant bit of kit!

    Posted by George Hampton on 11th Nov 2021

    So much of an improvement from my knock off unit. I saw George Farmer has been running GLA for ages! GLA regulators are 2-3x that of the rest of the bunch. Heavier and beefier all around. Luv it!

  • 5

    Absolutely incredible quality.

    Posted by Jose Rivera on 5th Mar 2021

    Bravo GLA, thank you for helping us with our co2 needs here in Italy. The DS Co2 regulator is absolutely a step above all the rest. This is true high quality equipment, unlike the co2art stuff they are pumping out in those fancy cardboard boxs. The ones we received from those guys was not even in the same playing field as GLA... People, know what your getting into before you purchase. Here at our LFS we will only use GLA from now on. Bravo!

  • 5

    Super quality co2 regulator from GLA.

    Posted by Bruni Campos on 2nd Feb 2021

    I retired my co2art regulator because it was giving me nothing but problems after 3 weeks of use. After no response I contacted GLA and within a few emails I had a deliver notification. Living in Germany I had concerns with delivery times. It arrived via Express in 5 days, faster than my local deliveries lol. As for the performance, I knew it was quality the second I took it out of the box. Its twice the weight of the co2 fart regulator. Which come to my surprise is a knock off version of GLA manifold system. GLA is the co2 pioneer of co2 distribution and invented the manifold system. Seeing as I was dealing directly with the originators, why go anyplace else. Nobody does it better than GLA. Im begging my wife to buy me another one. :) Thank you GLA.

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