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Bard part 5021-1213 is an OEM insulation piece used inside select Bard wall mounted HVAC units to help limit heat transfer and reduce cabinet vibration and sound, supporting stable unit operation and quieter airflow. When insulation is missing, damaged, or oil soaked, you can see nuisance sweating, rattles, and efficiency loss, so replacing it with the correct factory part is a smart fix during service. Because insulation shapes and cutouts vary by model and production run, confirm the unit model and serial number before ordering to ensure proper fit and coverage.
* Orders less than $50 may incure a minimum order fee.