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Aquarium Air Check Valves

When air pump is installed below water level, check valve must be in use in order to prevent the siphoning of water into the pump in the event of power outage.

Check Valve by Won Brothers AE-452-12405 $1.89	Air Check Valve by Penn-Plax AE-PP-CV1 $1.95	Elite Air Check Valve by Hagen AE-A1165 $2.19	Air Check Valve by TOM Aquarium Products AE-TOM-1183 $1.95