Description
GLA PRO-DS-1 Dual Stage CO2 Regulator (Modular) (DIN477)
The GLA PRO-DS-1 Dual Stage CO2 Regulator (DIN477) is a professional-grade solution designed for advanced planted aquariums. Built for precision, stability, and long-term reliability, it delivers consistent CO2 output without the pressure fluctuations commonly found in single-stage regulators.
This DIN477 version is designed for international CO2 cylinders used in Europe, the UK, Australia, and other regions using DIN-standard valves.
Engineered with a modular manifold system, the PRO-DS allows you to expand CO2 distribution as your system grows while maintaining precise control.
Who This Is For
- Advanced aquascapers and high-tech planted tanks
- Single aquarium setups (expandable)
- Users who demand maximum stability and control
If you are looking for the highest level of CO2 precision and a regulator that can grow with your setup, the PRO-DS is the ideal solution.
Why Dual Stage Matters
Dual-stage regulators reduce CO2 pressure in two steps, eliminating fluctuations as the cylinder empties. This prevents “end-of-tank dump” and ensures stable, consistent CO2 delivery from full to empty.
- No end-of-tank pressure spikes
- Stable working pressure throughout cylinder life
- Ideal for sensitive and high-demand aquariums
Modular Manifold System
The PRO-DS-1 includes a single-block manifold, designed for one aquarium with the ability to expand. Additional blocks can be added to distribute CO2 to multiple aquariums as your system evolves.
- Single CO2 output line (expandable)
- Upgradeable multi-tank CO2 distribution
- Independent needle valve control per 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)
Each block operates independently, allowing precise CO2 adjustment for every aquarium.
Key Features
- Dual Stage Regulator: Eliminates pressure fluctuations
- 1-Block Modular Manifold: Single aquarium (expandable)
- Precision Needle Valve: Micro-adjustment for accurate CO2 dosing
- Integrated Solenoid: Automates CO2 on/off
- Dual Gauges: Monitor tank 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
- Engineered to meet GLA performance standards and tested to ensure consistent, dependable operation.
Specifications
- Installation: DIN477 (EU, UK, AU standard CO2 cylinders)
- Pressure Reduction: Dual Stage
- Output Pressure Range: 0–140 PSI
- CO2 Distribution: Single aquarium (expandable)
What’s Included
- GLA PRO-DS-1 Dual Stage CO2 Regulator (DIN477) with 1-block modular manifold
- GLA OEM CO2 tank seal
The GLA PRO-DS-1 regulator is designed for aquarists who want maximum stability and the ability to expand their system over time. It delivers professional-grade CO2 control with a scalable design.
GLA CO2 Equipment
GLA CO2 regulators are engineered to meet our exacting standards for precision, reliability, and long-term performance. Each unit undergoes inspection and testing in the USA to ensure consistent, dependable operation in demanding aquarium environments.
Trusted by aquascapers worldwide, GLA CO2 equipment has set a benchmark for quality—delivering professional-grade performance for aquarists who demand precision, reliability, and long-term results.
FAQ
What is the benefit of dual-stage regulation?
Dual-stage regulators prevent pressure fluctuations as the CO2 cylinder empties, ensuring stable output and eliminating end-of-tank dump.
Can this run multiple aquariums?
Yes. The PRO-DS-1 includes one output but can be expanded with additional manifold blocks.
Each block provides one CO2 output. This model starts as a single aquarium setup and can be upgraded to support multiple tanks.
Can I expand later?
Yes. Additional manifold blocks can be added as your system grows.
Is this compatible with other regulators?
No. The modular manifold system is designed specifically for GLA PRO-DS regulators.
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: GLA CO2 regulators are 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.
Warranty coverage applies only to products purchased directly from greenleafaquariums.com or authorized sales channels. Proof of purchase may be required for all warranty claims.
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 sole 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, cartridges, and other consumable or accessory items are not covered under the regulator warranty unless otherwise specified.
Customer Reviews
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Gla-pro-ds-1 kit
Amazing product, fast shipping and excellent communication with customer service.
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Best of the best CO2 regulator
From top quality manufacturing, packaging and shipping to the stellar performance of this CO2 regulator I have no words to explain how much I like this product!
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Best in the hobby.
No comparison when comparing to Co2Art. GLA is the absolute beast in co2 gear. Much finer materials and quality in built integrity. I get better precision flow deliver compared to my shitty co2art regulator. Easily 3x heavier and beefier in size. Im sure this makes all the difference folks. GLA is premium goods.
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Superior Co2 system from GLA.
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.
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Regulators and customer service
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.
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GLA Pro
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!
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Beautiful work by GLA.
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.
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Absolute best in the aquascaping hobby.
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
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Brilliant bit of kit!
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!
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Absolutely incredible quality.
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!
