When an air pump is installed under the aquarium, a check valve should be used to prevent the siphoning of water into the pump in the event of a power outage. These valves can also be used in CO2 read more ››
Great for dosing CO2 in a planted aquarium or for use with a calcium reactor. Includes flow regulator, needle valve, electronic solenoid & bubble counter. Unit comes with dual gauges each with dual read more ››
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