S.T. International Aquarium CO2 Bubble Counter, Mini
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<b>[Product Information]</b><br>
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<li>Effectively calculates the CO2 quantity being released into the aquatic tank when used with a CO2 regulator</li>
<li>Provides double protection for your CO2 pressure regulator, CO2 cylinders and other accessories</li>
<li>Does not waste CO2</li>
<li>Accurate and easy to read</li>
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