The Williams Furnace P142700 Pilot Gasket forms a sealing connection around the pilot assembly to help prevent unwanted air or gas leakage. This gasket is positioned between the mating surfaces of the pilot components, where it compresses during installation to create a proper seal. By maintaining a sealed connection, it supports the correct operation of the pilot system and helps kee... https://www.hnkparts.com/p142700-williams-furnace-gasket