Check Valve Stainless Steel One Way Non-Return Check Valve for Aquarium Co2 System Aquarium CO2 Diffuser
One way professional check valve.Small and compact, about 4cm long.
Can prevent the aquarium from the water flowing back, which is caused by the decrease of CO2 pressure,and keep the function and service life of CO2 bottle.
Easy to install, no additional tools required, can be connected to any location in seconds.
Fits standard aquarium CO2 pipe(4mm) internal diameter. Suitable for CO2 supplying system in fish tank, aquarium and others.
Suitable for CO2 supplying system in fish tank, aquarium and others.
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