CO2 Beetle Counter
SKU #: 102-202
In case of a large CO2 supply with Pollen Glass Beetle, CO2 Beetle counter is effective in measuring the proper amount of CO2. As CO2 bubbles rise in a spiral, you can easily count the number of CO2 bubbles. Includes one-way flow valve Use with Cabochon Ruby enhances the appearance of the aquarium's exterior.
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