The 20170801AS Collector Box Front Cover Goodman Manufacturing and Amana is a protective furnace component designed to seal the collector box assembly. It functions by enclosing the condensate collection area, helping maintain proper airflow and preventing leaks within the combustion system. Commonly used in high-efficiency gas furnaces, it supports safe operation and system integrity. https://www.partshnc.com/collectorboxfrontcoverwgasket-3