Marina Plastic Check Valve | Pisces Pets
https://youtu.be/9sOC4pdvseY
Marina Plastic Check Valve | Pisces Pets
https://youtu.be/9sOC4pdvseY

Marina Plastic Check Valve

$5.99
The Marina Check Valve prevents water from siphoning out of the aquarium through the air hose and into the air pump in the event of a power failure or when removing filters and other air-driven accessories from the aquarium.

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