GLA PRO-DS-1 Aquarium CO2 System (Dual Stage) (Modular) (Advanced) *PRE-ORDER - SHIPS EARLY JUNE 2020



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GLA custom CO2 systems provide planted tank hobbyists the CO2 essentials and monitoring equipment they need to grow a successful planted tank. Our extremely reliable CO2 equipment allows you to focus on what's important, growing & enjoying your planted tank. The GLA PRO CO2 System contains the following equipment:

GLA PRO-DS-1 Aquarium CO2 Regulator (Dual Stage)

GLA PRO-series CO2 regulators are built with professional & innovative components for CO2 precision and lifetime CO2 distribution. Our PRO series CO2 regulators are designed to last you a lifetime of planted aquarium enjoyment. We design and hand build our CO2 regulators in the USA, our business is founded on providing lifetime CO2 technology and CO2 distribution excellence.

Professional grade dual stage regulator body

Dual stage regulator reduces source pressure in two steps to eliminate fluctuation in working pressure, as pressure drops in CO2 cylinder

Multi-stage stainless steel micron filtration inlet and outlet

Laser precision metal-on-metal valve seat. 

Integrated pressure relief valve (PRV)

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

Dual gauge (tank volume and working pressure)

No end-of-tank dumps

We are confident that our modular 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: CGA320

Output Pressure: 0 - 140 PSI

Tank / High Pressure: 0 - 3000 PSI

Milwaukee MC122 PH Controller

The Milwaukee MC122 pH Controller allows you to monitor pH andmaintain desired CO2 levels in your aquarium. The MC122 is designed to connect to the solenoid of your CO2 regulator. It regulates the release of carbon dioxide, which is directly related to pH. Once a desired pH is set, the controller will signal the solenoid valve to prompt the CO2 regulator to stop releasing or to release more CO2 in order to maintain the set pH.

Range: 0.0 ~ 14.0PH

Accuracy: ±0.2PH

Resolution: 0.1PH

User selectable Hi/Low Set Point

Manual 2 point calibration

Double junction pH electrode with 2m cable (BNC connector)

Alarm indicates when reading is higher/lower than set point

Power Supply: 12 VDC

CO2 Cylinder + Check Valve + Permaseal + CO2 Tubing

Select one or two 5lb aluminum CO2 cylinders to meet your needs. Cylinder ships empty.

Check valve permits flow in one direction only. Quantity: 1

Brass permaseal provides a permanent seal for the connection between your CO2 regulator and cylinder. Quantity: 1

CO2 resistant, high pressure rated tubing. This is not silicone tubing, with our tubing no CO2 will be wasted. Quantity: 10 feet

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 or CO2 systems.

GLA modular series regulators are covered under a LIFETIME warranty.



1 Review

Mark Melrose 25th Aug 2019

Excellent system

Purchased this system for my 100 gallon tank at work (my first foray in CO2) and was so impressed with it that I bought a second identical system for my tank at home. The setup was relatively easy with clear instructions. The PH controller works like a charm. Since I got it up and running the plants are growing like crazy, and I haven't had to adjust anything. It's expensive, but I feel it is well worth the money. I had an issue with my diffuser not functioning correctly initially on the first system, but the company sent me a replacement by priority mail immediately. Before the replacement arrived the diffuser started diffusing (probably a stuck check valve). Impressed with GLA.

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