Description
GLA GRO Planted Aquarium CO2 Regulator
The GLA GRO CO2 Regulator is a compact, precision-built single stage regulator designed for reliable CO2 delivery in single aquarium setups. Built with high-quality pneumatic components and assembled to strict standards, it provides consistent output and dependable performance for planted aquariums.
Positioned as a streamlined option within the GLA regulator lineup, the GRO is designed for aquarists seeking reliable, consistent CO2 performance in a compact and straightforward configuration.
Designed for consistency and reliable long-term operation, the GLA GRO delivers stable CO2 performance for planted aquariums of many sizes when configured appropriately.
Who This Is For
- Aquarists seeking a streamlined and reliable CO2 regulator
- Single aquarium planted tank setups
- Hobbyists prioritizing compact installation and simplicity
- Planted aquarium systems not requiring modular multi-aquarium expansion
Aquarists seeking additional modular expandability or enhanced pressure stability refinement as cylinder pressure changes may also consider dual-stage systems such as the GLA PRO-DS or DS-MINI.
Key Features
- Single Stage Design: Reliable CO2 delivery for single aquarium setups
- Precision Needle Valve: Micro-adjustment for accurate and stable CO2 dosing
- Integrated Solenoid: Automates CO2 on/off with a timer or controller
- Premium Bubble Counter: Includes integrated check valve to protect internal components
- Pressure Relief Valve (PRV): Built-in safety feature for system protection
- Compact Footprint: Clean installation with minimal space requirements
- Tested in the USA: Pressure tested and leak checked prior to shipment
Performance & Design
- Laser precision metal-on-metal valve seat for consistent regulation
- Multi-stage micron filtration at inlet and outlet
- 360° adjustable needle valve for flexible installation
- Durable aluminum regulator body with premium pneumatic components
- Engineered to meet GLA performance standards and tested to ensure consistent, dependable operation.
Specifications
- Installation: CGA-320 (USA standard CO2 cylinders)
- Pressure Reduction: Single Stage
- Output Pressure Range: 0–70 PSI
- CO2 Distribution: Single Aquarium
What’s Included
- GLA GRO CO2 Regulator with integrated solenoid and bubble counter with check valve
- GLA OEM CO2 tank seal
The GLA GRO CO2 Regulator is designed for aquarists who value reliability, simplicity, and clean installation. It delivers consistent CO2 control for planted aquariums without unnecessary complexity. Simple, reliable, and built to perform—everything you need for a clean and effective CO2 setup.
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
Is this a dual-stage regulator?
No. The GLA GRO is a single-stage regulator designed for simplicity and reliability in single aquarium setups.
Can this run multiple aquariums?
Yes, with the addition of a GLA GRO CO2 splitter. However, for independent control and maximum stability, a dual-stage regulator system is recommended.
Will this work with standard CO2 tanks?
Yes. This model uses a CGA-320 connection, which is standard for CO2 cylinders in the USA.
Is this suitable for beginners?
Yes. The GLA GRO is commonly chosen by both beginner and experienced planted aquarium hobbyists seeking a compact, reliable, and straightforward CO2 regulator system.
Optional Add-On: CO2 Splitter (Multi-Tank Expansion)
Expand your GLA GRO CO2 System to run multiple aquariums with the GLA CO2 Splitter. Designed specifically for compatibility with GLA GRO regulators, this add-on allows you to distribute CO2 to additional tanks from a single regulator.
Each outlet includes its own precision needle valve, allowing independent control of CO2 flow to each aquarium for optimal tuning and plant growth.
- Expands CO2 distribution to multiple aquariums
- Independent needle valves for precise control per tank
- Easy installation directly onto GLA GRO regulators
- Designed for seamless compatibility with GLA GRO systems
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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Excellent quality co2 regulator
Ordered this no a Wednesday and arrived to me on Friday. Very well packed with super easy installation instructions. I use this on my 75g tank and so far everything has been A+ perfect. I echo what many have already said that the regulator is truly buttery smooth. Dialing in bubble rate with this needle valve is beyond easy, so much better than my previous co2 regulator. A+ product all around.
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Fabulous co2 system
Love this co2 regulator. It was easy to set up in minutes. Thanks for helping me GLA!
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Perfect A+
I got this to add carbon to my 20g tank and its been about a month now. I really like the bubble counter being attached and the fact its able to swivel out of the way and be used without bubble counter. I opted for the complete system option because I needed a complete co2 system. GLA co2 system is absolutely worth every penny. Fantastic support and easy to follow directions.
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Fantastic!
So glad I went this route for my 60g tank. This regulator is very nicely built and very easy to install and adjust flow rate. I like that I can use this regulator for every cylinder type even though I likely will not use it for anything but full sized tanks. Now if only they had a sodastream adapter I would be set. This is an A++ co2 regulator, dont waste your money anywhere else because GLA has you covered.
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Love it
This regulator works so well and keep steady pressure. You can have inline accessories with this one. I love this regulator it was easy to set up and pretty standard function. GLA included a piece of co2 resistant tubing which is very high quality. They also send you instructions so even if you never setup a delivery system it won’t be a problem. I highly recommend this product.
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Beyond 5 stars
This is the third regulator that I bought and it’s the best one so far. While trying to install this product, I had a difficulty figuring out the instructions. I contacted the support team and within minutes, I got a response. I wasn’t able to finish the installation within the day because of my busy schedule but the support team walked me through, day and night while at work, responding promptly to my emails. I am very satisfied with their customer service and how the product works. What a great team! Thanks GLA!
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Awesome buy
This product is worth every penny and have the best support!
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Absolutley stellar build quality
This is my 3rd regulator from GLA over the last 10 years and I cant say enough how excellent the build quality is. Originally I had a shipping issue and some how they were able to correct the issue while in transit. Customer service over the years is unparalleled. You can rest assured your in good hands with GLA!
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Best product!
Very nice product! I'll back for shopping
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Gro 1
Bought this about 2 years ago and never looked back works great I even added a manifold no issues recommend to anyone who will listen
