Description
The Advanced Distributor Products 76739300 Flue Box Gasket is a sealing component designed to sit between the flue box and adjoining assembly surfaces to reduce gas leakage at the connection point. It is shaped to match the mounting interface of compatible heating equipment and supports proper sealing under thermal load conditions. Within HVAC systems, it is used in furnaces, air handlers, and unit heater assemblies where flue pathways require controlled sealing between combustion sections and venting structures. The gasket maintain separation between exhaust flow and surrounding internal compartments during routine operation cycles in heating equipment setups.









