Stainless spring check valve assures no water backflow.
Suitable for CO2 system and air pump.
Air tube fastening nodes prevent bursting problem.
- Loose the air tube tightening node to give space in connecting the air tube.
- Connect air tube or CO2 tube correctly to the “air in” side and the “air out” side of the check valve.
- Fasten the air tube tightening node to firmly hold the air tube.