Seamless inline carbon delivery for ultra-clean aquascapes.

Keep your display tank free of bulky equipment without sacrificing optimal CO2 dissolution. The ASG Inline CO2 Diffuser connects directly into your filter's output tubing, injecting micro-bubbles straight into the water column before it enters your aquarium. The result? Maximum CO2 saturation, rapid plant growth, and a completely clutter-free aquascape.

Crafted from high-grade stainless steel, this diffuser is built for long-term durability and features a sleek, integrated bubble counter so you can easily monitor and dial in your dosing rates at a glance.

Versatile Tubing Compatibility

No more guessing on fitment or searching for aftermarket fittings. While designed natively for 12mm ID tubing, we include precision adapter kits to fit the exact hose sizes across our entire canister lineup:

• Native (12mm ID): Fits standard 12mm filter tubing right out of the box.

• 8mm Adapter Included: Perfect native fit for the ASG PURE Mini Canister Filter.

• 10mm Adapter Included: Perfect native fit for the ASG Nano Canister Filter.

Key Features:

• Integrated Bubble Counter: Easily track the flow rate directly on the diffuser unit.

• Replaceable Ceramic Disc: When your diffuser disc gets gunked up or dirty over time, simply swap in a fresh ceramic disc for brand-new misting performance without replacing the whole unit.

• Ultra-Fine Misting: Produces a dense cloud of microscopic CO2 bubbles that dissolve rapidly into the water column.

• Durable Stainless Steel Construction: Premium, leak-proof build quality designed to sit safely inside your aquarium stand.

Clear the clutter from your display tank and supercharge your plant growth!