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The air flap gasket provides a tight seal between the air flap and the burner housing, preventing air leaks that can compromise combustion efficiency. Made from durable materials, this gasket withstands high temperatures and pressure variations typical in heating equipment. Replacing a worn or damaged gasket is a straightforward way to restore proper airflow control and improve burner reliability. Suitable for various gas burner models, it is a cost-effective spare part for boiler maintenance.