Description
GLA PRO-DS Dual Stage CO2 System (Modular)
The GLA PRO-DS CO2 System is a complete, professional-grade solution designed for serious planted aquariums. Built around our dual-stage regulator platform, this system delivers unmatched pressure stability, precision control, and long-term reliability.
Designed for aquarists who demand consistent performance, the PRO-DS eliminates end-of-tank pressure fluctuations and provides stable CO2 delivery throughout the entire life of your cylinder.
Who This Is For
- Advanced aquascapers and high-demand planted tanks
- Multi-aquarium setups
- Users who want maximum stability and long-term reliability
If you are looking for the highest level of CO2 control and a system that can grow with your setup, the PRO-DS is the ideal solution.
What’s Included
- GLA PRO-DS Dual Stage CO2 Regulator with modular manifold (expandable)
- 5 lb aluminum CO2 cylinder (ships empty)
- CO2-resistant aquarium tubing (10 feet)
- Nylon CO2 tank seal
Why Dual Stage Matters
Dual-stage regulators reduce CO2 pressure in two steps, eliminating the fluctuations commonly seen in single-stage regulators as the cylinder empties. This prevents “end-of-tank dump” and ensures stable CO2 output for consistent plant growth.
- No end-of-tank pressure spikes
- Consistent working pressure from full to empty
- Improved stability for sensitive or high-tech aquariums
Modular Manifold System
The PRO-DS features a fully modular manifold system, allowing you to expand CO2 distribution to multiple aquariums using a single regulator. Additional manifold blocks can be added or removed as your setup evolves.
- Start with a single aquarium
- Expand to multiple tanks as needed
- Independent control for each aquarium
- Clean, scalable system design
How the Manifold System Works:
- 1 Block → 1 Aquarium
- 2 Blocks → 2 Aquariums
- 3 Blocks → 3 Aquariums
- 4+ Blocks → Expand as needed (up to 6 blocks)
Each block includes its own precision needle valve, allowing independent CO2 control for each aquarium. Each block operates independently, allowing precise CO2 adjustment for every aquarium.
Key Features
- Dual Stage Regulator: Eliminates pressure fluctuations and ensures stable output
- Modular Manifold: Expandable CO2 distribution system
- Precision Needle Valve: Micro-adjustment for accurate CO2 dosing
- Integrated Solenoid: Automates CO2 on/off with a timer or controller
- Dual Gauges: Monitor cylinder pressure and working pressure
- Premium Construction: Built with high-grade pneumatic components
Performance & Design
- Laser precision metal-on-metal valve seat
- Multi-stage stainless steel micron filtration
- Integrated pressure relief valve (PRV)
- Pressure tested and leak checked prior to shipment
- Designed and assembled in the USA
Important Notes
- CO2 cylinder ships empty and must be filled locally
- A diffuser or reactor is required for in-tank CO2 delivery (sold separately)
- Additional manifold blocks can be added for multi-tank setups
Specifications
- Installation: CGA-320 (USA standard CO2 cylinders)
- Pressure Reduction: Dual Stage
- Output Pressure Range: 0–140 PSI
- CO2 Distribution: Single aquarium (expandable)
GLA CO2 Equipment
Designed in the USA, GLA CO2 regulators represent our highest standard of precision engineering and long-term reliability. Each unit is built using premium pneumatic components and rigorously tested to ensure consistent, dependable performance in demanding aquarium environments.
Trusted by aquascapers worldwide, GLA CO2 equipment has set a benchmark for quality—delivering professional-grade performance for high-tech planted aquariums and advanced multi-tank systems.
FAQ
What is the benefit of dual-stage regulation?
Dual-stage regulators prevent pressure fluctuations as the CO2 cylinder empties, providing consistent output and eliminating end-of-tank dump.
Can this run multiple aquariums?
Yes. The PRO-DS system uses a modular manifold design that allows you to expand CO2 distribution to multiple aquariums.
Each “block” on the manifold represents one independently controlled CO2 output. When selecting your configuration above, simply choose the number of blocks based on how many aquariums you plan to run.
- 1 block = 1 aquarium
- 2 blocks = 2 aquariums
- 3 blocks = 3 aquariums, and so on
For example, if you are running three planted tanks, you would select a 3-block manifold. Additional blocks can be added later if your setup expands.
Does the CO2 tank come filled?
No. The cylinder ships empty and must be filled at a local supplier.
Is this suitable for beginners?
This system is designed for users who want the highest level of control and long-term performance. Beginners may also use it, but simpler systems are available.
Support & Warranty
- Lifetime Warranty: Regulator covered against manufacturing defects
- Lifetime Support: Expert assistance available
- Installation Guidance: We’re here to help you get started
Limited Lifetime Warranty: The GLA PRO-DS CO2 Regulator included in this system is covered by a limited lifetime warranty against defects in materials and workmanship for the original purchaser. This warranty is non-transferable and applies only when the product is used in accordance with Green Leaf Aquariums, LLC (GLA) guidelines and standard operating practices.
This warranty does not guarantee product performance for the lifetime of the purchaser. Product lifespan may vary based on usage, installation, and operating conditions.
- Coverage applies only to manufacturing defects under normal use
- GLA reserves the right to repair, replace, or issue store credit at its discretion
- If a product is discontinued, a comparable replacement or credit may be provided based on product condition and age
Warranty Exclusions:
- Improper installation, misuse, neglect, or damage
- Modifications, alterations, or unauthorized repairs
- Use of improper tools or excessive force
- Normal wear and cosmetic damage that does not affect functionality
Important: A wrench should only be used to secure the regulator to the CO2 cylinder. Damage resulting from improper use of tools or incorrect installation methods is not covered under this warranty.
GLA is not responsible for damage caused by improper installation or use. However, repair services and support may be available for a fee.
CO2 cylinders, tubing, and other consumable or accessory items included with this system are not covered under the regulator warranty unless otherwise specified.
Proof of purchase may be required for all warranty claims.
Customer Reviews
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Go with GLA, dont be like me.
My first co2 system from co2art was total garbage. Wife is extra pissed I wasted that coin on them. Had I known about GLA prior I would have totally went with GLA. My god, the difference is night and day. People, dont be fooled because that other shit is absolute garbage in comparison. I reached out to GLA for a few basic questions, they responded quickly and were very helpful. This system is the way to go 100%. Dont be a sucker go with GLA!
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Best co2 system available.
I spent days doing my homework, at one point considered building my own. After much research GLA was the way to go. Im glad I did because its been excellent. I was not endorsed or paid to leave this review. I only wish I could attach photos of my aquascapes to this review. Save yourself the headache and go with GLA.
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Go with GLA!
My wife was super upset that I needed to replace my co2 regulator for the 3rd time. I never could afford GLA systems and always bought the low dollar equipment. Im not evcen sure why all that cheap stuff has such great reviews. They are all toy garbage. When the GLA regulator arrived I knew instantly I should have bought this years ago. Dont be a dummy and save your money. Buy GLA co2 systems. Everything else is just generic garbage.
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The best complete co2 system on the market no doubt.
Very happy to leave this review for GLA. This is my 3rd complete co2 system thats actually complete. While it doe snot come with a diffuser it has everything else. No system should come with a diffuser. Thats like giving away free shoes in a one size fits all solution. The GLA co2 system in terms of quality and ease of use gets an A+. Complete with instructions and how to videos. Many components are made in the USA and the co2 system is assembled and packaged on US soil. No other company is offering this level of service, and is why you should choose GLA.
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Beautifully made with excellent delivery co2 system
I buy now my 3rd co2 system for my aquascapes. GLA co2 system is above and beyond what I currently have. Beautiful finish, large regulator body and easy to adjust co2 flow rate. The manual provided was easily followed and no hiccups at all. Thank you GLA
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Profesional co2 system.
GLA was very helpful in getting me exactly what I was looking for. I leave on business regularly and needed a reliable co2 system. My latest business trip was the last draw for my cheap Chinese co2 system. Upon return was an absolute nightmare. Dead fish and algae were everywhere. I reached out to GLA for help and what I received was more than I could ask. I shop a lot online, like everybody else. Working with GLA was much different. You can tell when you receive your shipment before even opening it that these guys care more about what you receive than anybody else. Everything was packed meticulously and the performance of the co2 system was luxurious. I had to restart my tank completely after my disaster, but Im confident I can rest well when Im away on business. This system is 100% precision made co2 system. From the tubing,check valve and cylinder all the way to the tape on the box. Im a fan for life, so glad I found you guys :)
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The best all in one co2 system for aquascaping.
I looked at every available option and GLA always stood above the rest on every aspect. Quality built co2 system assembled in the US. The regulator and cylinder are phenomenal. The one thing these co2 systems do not come with is a co2 diffuser, but for good reason. Providing me with a basic general diffuser would not suffice because diffusers are not a one size fits all solution. Knowing that I went with a reactor for inline use and I purchased the new stainless steel canister filter GLA has and my cabinet space looks amazing. So amazing I removed the doors. Save yourself the headache and go with GLA. I pestered them with a million emails and they gladly explained everything and going as far as providing a quick Bio about GLA. They are the original goto co2 gurus. Having invented the modular manifold you have no reason to look at knock offs, because thats what the rest will be. They have terrific pricing and top notch customer support.
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The best aquarium co2 systems.
Like everybody else I shopped for days. After consulting GLA to ask them a few questions I was absolutely sure I was going with GLA. Setting up the system took me about 15 minutes because I move a little slow. Everything was absolute precision. My diffuser was blasting out co2 rock solidly now for 4 months. My tank is glowing with colorful growth and is why Im here today. To buy another co2 system, we cant wait!
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GLA has the best aquascaping supplies.
I took a long time in deciding my next co2 system. My husband was not happy with my previous budget purchased co2 system so he was very hesitant. Green leaf Aquariums eased his pain with flying colors. This system that was delivered was a professionally assembled and packed co2 system. Everything was beautiful. My husband commented right away, "Ok, this is next level sh*t". I totally agree, the GLA co2 system you can immediately tell it was built by a reputable team. The procedure for installation was easy especially with the provided instructions and videos. https://www.youtube.com/user/aquazilla You have a customer for life. Thank you from the Hughes family!
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GLA PRO - DS - 1 Dual Stage CO2 System ( Modular)
Excellent packaging, comes with everything ... Completely satisfied. Easy to setup , adjusts and runs like a charm. I had been procrastinating about what brand to buy , the choice was clear ... GLA ...
