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.
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.
$25
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