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 Block. Each precision-machined block adds an additional independently controlled CO₂ outlet, allowing you to supply CO₂ to multiple aquariums from a single regulator.

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

GLA manifold blocks are designed specifically for use with GLA dual-stage DS and DS-mini CO₂ regulators and install quickly with 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 if you need assistance.

Generation 3 (G3)

• Non-tapered needle valve
• Knurled texture extends the entire surface of the needle valve

Generation 2 (G2)

• Tapered needle valve
• Knurled texture extends only halfway up the needle valve

Features

• Expands CO₂ distribution to additional aquariums
• Built-in precision needle valve for fine CO₂ adjustment
• Integrated bubble counter for easy monitoring
• Modular expansion design
• Easy installation