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Back Draft Stopper

Details

  • Locke Part #: L3538
  • Mfg. Part #: 111577
  • Manufacturer: Builder's Best
  • UPC: 722048115774

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  • 4" Diameter Opening
  • A Quick Easy Installation
  • Helps Stop Cold Air From Entering
  • Plastic Construction With Balanced Damper Fully Assembled


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