![Aqua One Airline Check Valve Carded (2pk) Aqua One Airline Check Valve Carded (2pk)](https://cdn11.bigcommerce.com/s-8r0r4h3bz/images/stencil/300x300/products/2107/2626/EB8CC10A-EEA3-45F5-9ABB-8EE5320FDAAC__24013.1632052365.jpg?c=1)
High-pressure +100psi resistance CO2 check valve. With the incredibly low opening cracking pressure of 1 psi !
Permits flow of CO2 in one direction only, protecting your system from water backflow and solenoid damage.
Easy push-in connectors allow easy inline installation.
Compatible with all CO2Art CO2 resistant tubing types.