Penn-Plax Check Valve with Air Filter

Penn-Plax Check Valve with Air Filter
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4 out of 5 stars

Protect your air pump against water damage with this check valve and supply clean air to your aquarium. Connect the check valve in-line to the air tubing between your air pump and your aquarium. Ensure that the check valve is facing the correct direction (follow the diagram on the packaging). Connected correctly, the check valve will prevent water back-siphoning in the event of a power outage or air pump failure.


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By Kris T from N/A on December 18, 2014
I used these for a few weeks, then removed them and raised the pump instead as the pressure loss was too great. This was more the pump's issue than the check valves, but worth mentioning for people planning systems.
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