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The AO SMITH 100113133 is an air filter kit designed as a direct replacement component for AO SMITH water heating or HVAC systems. Air filter kits of this type serve to maintain clean airflow through combustion air intakes or ventilation pathways, protecting internal components from dust, debris, and particulate buildup. Proper filtration supports consistent burner performance and extends equipment service life. This kit is typically installed by licensed plumbers, HVAC technicians, or water heater service professionals performing routine maintenance or component replacement.
This air filter kit is suited for use in residential or light commercial applications where AO SMITH equipment requires periodic filter service. Regular replacement of the air filter helps ensure adequate combustion air supply, supports efficient operation, and may be required to maintain manufacturer warranty compliance. Consult the equipment service manual to confirm the correct replacement interval for the specific installation environment.
Designed as an OEM-style replacement air filter kit for compatible AO SMITH water heating or HVAC equipment. Consult the equipment model documentation or service manual to verify fitment before installation.
Installation should be performed by a licensed plumber or HVAC technician familiar with AO SMITH equipment. Before servicing, shut down the appliance and allow it to cool to a safe handling temperature. Follow all applicable local codes and manufacturer service documentation when removing and replacing filter components. Do not operate the equipment with the filter removed or improperly seated.
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