The International Comfort Products 1012593 Collector Box Gasket is a durable replacement sealing gasket designed for compatible residential and light commercial gas furnaces. It creates a secure, airtight seal between the collector box and adjoining components, preventing flue gas and condensate leaks while maintaining proper airflow within the combustion system. This gasket helps sup... https://www.partshnc.com/collector-box-gasket-31