The Laars Heating Systems RS2011100 Fan Outlet Gasket is a replacement sealing component designed for compatible Laars heating equipment. It fits between the fan outlet and its adjoining connection, helping create a secure seal for proper airflow through the system. This gasket helps minimize air leakage, supports consistent fan operation, and maintains reliable equipment performance. https://www.partshnc.com/laars-heating-systems-rs2011100-fan-outlet-gasket