Seachem Glass CO2 Bubble Counting Diffuser

Seachem Glass CO2 Bubble Counting Diffuser

Seachem's Glass Bubble Counting Diffusers combine a diffuser and bubble counter in a single glass unit, simplifying CO2 system setup and eliminating the need for a separate inline bubble counter. The lower chamber contains water and counts individual CO2 bubbles as they pass through, allowing precise flow-rate monitoring without interrupting CO2 delivery. The upper pollen disc creates ultra-fine microbubbles for efficient CO2 dissolution. All units are constructed from durable borosilicate glass with ceramic pollen discs. Available in two styles:

• Counting Diffuser 17mm — Standard disc style; compact unit that fits most aquariums up to 40 gallons
• Counting Spiral Diffuser 23mm — Spiral chamber design extends bubble contact time for improved dissolution efficiency; ideal for tanks up to 60 gallons