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Bard part 542-110 is an OEM fill plate used with Bard wall-mount ventilation accessories, including CRV and economizer configurations, to close off and protect an opening in the ventilation section so the unit maintains proper airflow paths and weather separation. When a vent kit is serviced, changed, or when specific openings are not in use, this plate helps restore the factory intended barrier to prevent air bypass and unwanted infiltration that can affect performance and controls. Because Bard cabinet and vent assemblies vary by model series and revision, confirm 542-110 against your unit model and the correct CRV or economizer parts list to ensure proper fit before ordering.
* Orders less than $50 may incure a minimum order fee.