Air automatically enters drainage line to prevent syphonage. Seal closes as drainage stops to prevent sewage gas from entering home. For use with sinks, tubs, showers and washing machines. Size 1-1/2".
Air automatically enters drainage line to prevent syphonage. Seal closes as drainage stops to prevent sewage gas from entering home. For use with sinks, tubs, showers and washing machines. Size 1-1/2″.
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