Description
* These Stainless Steel One Way Check Valves are suitable for CO2 supply system in fish tank, aquarium and others. * The Pneumatic Check Valve can the aquarium from water flowing back, which is caused by the decrease, and keep the function and service life of Carbon dioxide bottle. * When used in the Ozone gene1or, air check valve can1 the Ozone from flowing back to the air pump and eroding the propeller.
