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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There’s no better co2 regulator for this price.
I spent months doing my research, even went to Aquashella trade show and saw this in action. This is so much better than Fzone or Co2art. The weight of this thing compared to those is immense, this thing is beefy and it’s been rock steady every day. I like the valve assembly especially because you have such fine control of the bubble rate. The warranty is also incredible. GLA is worth every penny.
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Very well crafted co2 regulator.
Replaced my Co2art regulator with this GLA compact unit. First off out of the box, it’s very heavy, twice the weight of Co2Art. Seems to have some very heavy duty construction that feels good in the hands. Like a nice watch. Secondly, it flows with precision. I had it installed in minutes and supplying my 29g shallow tank. In my opinion this is a great buy from GLA. Good quality and service from the GLA staff.
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Great regulator
Just came in today and feels well built with amazing quality. Would definitely buy again or recommend
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The best aquarium co2 regulators.
GLA makes the best co2 regulators hands over fist compared to Fzone. I threw that stupid thing into my trash bin. Sad, but glad I own GLA co2 regulator now, huge improvement in quality.
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Happy to own a GLA co2 regulator!
I’ve wanted a GLA regulator for years and finally pulled the plug. This regulator definitely out performs my cheap regulator. You don’t realize how nice a regulator can be until you have one of these beauties in your hands. Pleased would be an understatement.
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High quality and precision co2 delivery.
After several emails I went with the Gro, happy I did because I was on a budget and wanted the known service and warranty GLA is known for. It’s been a pleasant experience and today I’m on my second cylinder refill. Also added new fish today as my scape is evolving into a jungle. It was a very easy regulator to install even after forgetting how to on my refill. Luckily GLA has videos to follow which made it painless. Buy one cry once they say, GLA is a solid company to shop with.
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Five star quality and support!
Love GLA products but this Gro regulator is a warm welcome in my house. No more janky lightweight co2 regulator I used from Amazon. This is heavy duty and flows with precision. Buy with confidence from GLA, cant go wrong here.
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My aquascape thanks you!
Love this regulator, it’s my first and I’m a proud momma. My plants are growing extremely well. These guys ship and pack like nothing else. Love the customer service people, so helpful and always supportive with that text app they have.
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We love this co2 regulator.
We got this with GLA’s 2.5lb co2 cylinder and we love it. It’s a high quality piece of equipment and grows our plants like a champ, love it!
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Very nice!
Extremely happy, it was shipped fast! Moreover installation was painless. It’s a very nicely crafted piece of equipment. Saw these at a trade show and is why I bought this. It flows like a fine wine ?
