Pond Logic® PondAir™ Check Valves - 2 Pack
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The Small Water Garden Replacement Check Valve protects your aeration system by preventing water from traveling up through your air line and into internal aeration components. As the Small Water Garden Replacement Check Valve only allows a single direction of airflow, it is important that the check valve is installed with your aeration stone on the "out" end and the aeration source on the "in" end.
