GLA Modular Manifold Block

GLA Modular CO2 Manifold Expansion Block

Expand the CO2 distribution capacity of your existing GLA regulator with the GLA Modular CO2 Manifold Expansion Block. Each precision-machined block adds an independently controlled CO2 outlet, allowing you to supply multiple aquariums from a single regulator.

Each manifold block includes a built-in precision needle valve and integrated bubble counter, providing fine control and easy monitoring of CO2 delivery to each aquarium. The modular design allows you to expand your system as needed by adding additional blocks.

GLA manifold blocks are designed specifically for use with GLA dual-stage DS and DS-Mini CO2 regulators and install quickly using our modular expansion system.

Choosing the Correct Version (G2 vs G3)

GLA regulators have been produced in multiple generations. When adding a manifold block to an existing regulator, it is important to select the correct version that matches your regulator’s needle valve design.

Important Compatibility Note: Generation 2 (G2) and Generation 3 (G3) manifold blocks are not cross-compatible and cannot be mixed. Please verify which generation your regulator uses before ordering. Refer to the comparison photo in the listing or contact our support team at info@greenleafaquariums.com for assistance.

Generation 3 (G3)

• Non-tapered needle valve
• Knurled texture extends across the full length of the valve

Generation 2 (G2)

• Tapered needle valve
• Knurled texture extends partially along the valve

Features

• Adds an additional independently controlled CO2 output
• Precision needle valve for fine CO2 adjustment
• Integrated bubble counter for visual monitoring
• Modular expansion design
• Quick and secure installation