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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Extremely happy
GLA quality on a budget. I could have chose a dual stage regulator within my budget with more options from other manufacturers/competitors but since this is my first regulator for a single 20 gallon tank I decided this was the best bet for me. No matter how much research you do ; or how many YouTube videos you may watch you can still run into trouble setting up your first c02 system and YOU ARE going to have questions. GLA is there to help and quickly answer your questions and get your c02 up and running. What you get is an extremely high quality regulator; bubble counter , tools, instructions and excellent customer service. Everything from the packaging to the regulator itself screams high quality. (Even the tape they use on the shipping box is delightful to look at ) . I’ve had mine up and running for almost a month and my plants look ultra healthy and are growing so fast , I think I’ve got my money back from trimming and replanting as opposed to buying more plants !
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Very nice and very nice needle valve.
Much improvement form my old regulator. More precise and to me easier to adjust bubble rates far more accurately. Quality is very nice and feels very heavy duty. I will be buying another one for my 80g next week!
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Best Regulator ever
From the moment you open the box you realize the quality of the product and the dedication to the customer. very well built good and solid materials super easy to assemble and works perfectly. I have only been educating myself and growing in this fantastic hobby for a year, and I was always interested in climbing one more step or jumping whatever you want to call it and I am not sorry I did it with this CO2 regulator, 100% recommended I spent hours reviewing thousands of pages and options and this is the best price-value relationship, the product you receive is incredible
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Awesome co2 regulator!
Loving the needle valve on this regulator. I have an old GLA regulator from 15 years ago with an Ideal metring valve. That needle valve was $80 alone! Well, this entire regulator is only $100 and the needle valve performs with the same precision. Amazing regulator!
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Love it!
Its been terrific, no complaints here except I need another one for my new tank or I might just bite the bullet and go with the DS-2!
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Very nice upgrade to GLA!
Loving this regulator. Its been steady since day one, love it!
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Cool co2 regulator
Does everything I ask of it. Its even taken some abuse due to my clumsy negligence. This thing is a compact powerhouse. I abuse it and it feeds my plants with gentle kisses of co2 effortlessly. GLA is the real deal, dont settle for less.
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Super nice co2 regulator
Couldn't believe it when I opened the box. Super heavy and very heavy duty feeling. All very compact and works very well, no issues 7 months so far.
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Wonderful co2 regulator.
This is a wonderful co2 regulator. Im new to co2 and reached out to GLA for advice and ordered this. Arrived quickly and packed with much care(thank you!). The instructions and video made it a walk in the park, so pleasant. Ive refilled only twice in the year and its been spot on perfect every time. I love it.
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Very nice regulator worth the investment.
This definitely improved my low tech aquascape. You’d be surprised to see how much better things grow with co2. I’m enjoying every minute of my planted aquarium.
