Co2 Stainless Steel Check Valve

CO2 Stainlesss Steel Check Valve 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 Solenoid Regulator.

Use this Check Valve in your CO2 tubing between your CO2 Solenoid Regulator and adiffuser to prevent water returning down the air line.