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Bard part number 139-290 is an OEM damper frame used in Bard wall-mount HVAC ventilation assemblies to support and align the damper components so outside air and relief air control operate smoothly and seal correctly. A damaged or bent frame can lead to air leakage, inconsistent ventilation rates, and nuisance drafts, so replacing it with the correct Bard factory part helps restore proper airflow control and intended unit performance. Match this 139-290 damper frame to your exact unit model and ventilation option in the Bard parts manual before ordering to confirm proper fit and any associated damper blades or linkages reused during installation.
* Orders less than $50 may incure a minimum order fee.