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Bard part number 5070-044 is an OEM wheel assembly (ERW-1320B-X22) used in select Bard wall mounted HVAC equipment to move the correct volume of air across the blower section for proper airflow, comfort, and system performance. Replacing a worn, noisy, or out of balance blower wheel helps reduce vibration, protect the motor and bearings, and restore designed air delivery through the coil and duct connection. As a genuine Bard replacement, 5070-044 is built to match factory fit and balance characteristics, but you should confirm compatibility by model and serial number before ordering since wheel size and hub details can vary across unit families.