Product Review
The check valves are for common aquarium air pumps. Please DO NOT use them with CO2 system.
USAGE: Place your check valve between the air pump and aquarium water to prevent water returning down the airline.
Made of durable clear plastic. Package Weight: 1.34 oz / 38 g.
How to Clean:
Unscrew and open up check valve, pinch the rubber boot inside valve to make sure small slit is open. Otherwise no air to tank.











