Review on Transparent Aquarium Plastic Non Return Fitting by Teresa Sparks
Does not stop airflow
I bought these to provide unidirectional airflow and pressure holding capacity. The air usually flowed in one direction, but it was not possible to maintain this air pressure. Each of them releases air, albeit slowly, but not well enough for my application. Thought this fact would be useful to know. BTW I tried all 10 and they worked the same way.
- DO NOT use with CO2 system. Check valves are designed for common aquarium air pumps.
- No power
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