This 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 bottle.
When used in the Ozone generator, it can prevent the Ozone from flowing back to the air pump and eroding the propeller.
It can protect the power head from the water flowing back which is caused by power cut.
Protect your air pump by preventing aquarium water from back siphoning during a power outage.
Use this Check Valve in your airline tubing between your air pump and aquarium water to prevent water returning down the air line.
Well fits standard air line tubing aquarium and Co2 tubing with inner diameter about 4 mm
Material: stainless steel
Dimension : 4 cm x 0.7 cm
Note: it needs some pressure to star it, usually 0.1Mpa, not fit for normal air pump, it is suggested that it used goes with the Co2 bottle pressure system