GLA GRO-1 Aquarium CO2 Regulator


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The GLA GRO-series CO2 regulators lead the way in adaptive CO2 distribution. Our innovative modular manifold, allows the user to add manifold blocks with ease, and expand CO2 supply, independently, to up to 5 aquariums. Our GRO-series regulators can adapt to the expansion of your aquarium system, allowing you to use one regulator for multiple tanks. We make sure that when you invest in our professional CO2 equipment, you invest in a single regulator that can grow with you and last a lifetime.

Industrial grade regulator body

Custom precision GLA needle valve

Pro-class solenoid valve with ‘cool touch’ technology keeps the solenoid cool to the touch during operation

Custom GLA bubble counter with advanced filtration and check valve to protect internal components of regulator

Professional quality pneumatic components

Forged brass and die cast for durability and accurate machining

Dual gauge (tank volume and working pressure)

No end-of-tank dumps

We are confident that our GRO-series GLA CO2 regulators rise above and outlast the competition

Custom built, pressure tested, and leak tested in the USA

Our business is to provide professional quality CO2 regulators and systems to the aquarium hobbyist and to specialized CO2 applications seeking the best CO2 equipment available. We design our CO2 collection with pro-quality pneumatic components to provide an extremely reliable, long-term solution for CO2 distribution. Our CO2 experts build each regulator to order and provide longterm customer care for each regulator shipped out of our distribution center.

Installation: CGA-320 threads

Output Pressure Gauge: 0 - 60 PSI

Tank / High Pressure Gauge: 0 - 2000 PSI

Integral PRV: Pressure Relief Valve releases at 51 - 53 PSI

6 foot electrical cord

Includes: one nylon inlet seal and 5 feet of CO2 resistant tubing

Shipping & Lifetime Warranty

Current lead time of 1-3 business days. Orders ship in 1-3 business days.

We do not accept returns on CO2 Regulators.

GLA GRO-series regulators are covered under a LIFETIME warranty.



11 Reviews

Dan 22nd Aug 2019

Look no Further

I spent a lot of time trying to figure out how I was going to put my CO2 system together for my first planted tank. The regulator seemed to be the most difficult thing to find or put together yourself. The easier ones to find that were directed at aquarists all had a reputation of breaking or not working reliably.
GLA's regulator looks like it's composed of quality materials and it has been working perfectly. Just spend the money and don't waste your time trying to find a budget regulator. GLA responded quickly to a question I had regarding the product but... I haven't heard back from them on two other emails related to plants.
I'll keep shopping here because they have a great site and ship quickly. It would be nice to see more detail about the plants they offer as I have to search elsewhere for info on each one.

Charles 2nd Aug 2019

Solid regular

Wow what a step up from the $60.00 China regulator from amazon. I can’t believe I wasted so much time readjusting my old unit day after day. The bubble adjustment on the GLA GRO1 is consistent, it’s been in operation for a couple weeks now.

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