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Tetratec Check Valve
Reader's Reviews (6)
Works well, Protects Air Pump
posted 5 years ago
good quailty check valve. A must have if you use an external air pump to run your filter or in my case, air stones. The valve prevents water from back filling the tubing and ruining your pump.
Pros: prevents water back up into air pump
Cons: none if used properly
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