Ista CO2 Controller with Solenoid, Bubble Counter & Check Valve Boar Employing 4 individual filter baskets

Employing 4 individual filter baskets within it's "Easy Clean" grid

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The neck circumference is adjustable to fit all neck sizes

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Ista CO2 Controller with Solenoid, Bubble Counter & Check Valve Boar Employing 4 individual filter basketsThe Ista CO2 Controller with Solenoid, Bubble Counter & Check Valve is ideal for use in any freshwater planted aquarium with a CO2 injection system. This controller will ensure that your lush aquatic paradise will be accurately and reliably dosed with CO2 to promote the healthy, robust growth of your plants. Including a dual gauge with an easy to read display, you can rest assured knowing exactly how much CO2 is entering your aquarium, and how much is