INKBIRDPLUS Aquarium CO2 Regulator 12V DC Solenoid with Big Dual Gauges，Bubble Counter with Check Valve，Carbon Dioxide Regulator Fits CGA320 CO2 Cylinder.

[ DUAL PRESSURE GAUGES ] This aquarium CO2 regulator features 2 pressure gauges, clearly read the regulator Cylinder Pressure and Outlet Pressure
[ HIGH-ACCURATE ADJUSTMENT ] There is a high-accurate trimmer valve equipped on the CO2 regulator, an Aquarium-specific needle valve, High accurate fine-tuning, able to adjust the output flow rate of CO2 to one bubble per 3 seconds
[ NON-RETURN BUBBLE COUNTER ] The bubble counter comes with a check-valve function, which could prevent water from reversing back to the bottle. This aquarium CO2 regulator is ideal for maintaining the CO2 level in aquariums or draft beer preservation machines
[ SAFE & DURABLE ] This CO2 regulator comes with a 12V power adapter ensuring safe and stable working performance with no noise, adopts aluminum alloy construction, which is durable for long-time use
[ PROFESSIONAL DESIGNS ] A solenoid valve is included, which could deliver gas once connecting a power source. This 12V DC Solenoid CO2 regulator is designed with a non-leaking function, ensuring secure use. Fits CGA320 CO2 Cylinder

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