Weil McLain 590-317-495 Gasket 321702-401 Always verify the part number

Always verify the part number against your air handler or electronic air cleaner's technical literature

Optimized Airflow: Maintains the specific internal volume and port sizing required for accurate pressure switch readings

This industrial-grade relay is a standard inventory item for contractors servicing aging residential systems where precise signal transfer and reliable mechanical switching are required to maintain boiler safety sequences

and Payne furnace models

Weil McLain 590-317-495 Gasket 321702-401 Always verify the part numberEnsuring a pressure tight seal on a Weil McLain 68 boiler section assembly is critical for hydraulic integrity and thermal efficiency. The Weil McLain 590 317 495 round tankless heater gasket is engineered specifically for cover plate interfaces in high temperature hydronic applications. This OEM Weil McLain replacement gasket provides a robust seal for the round tankless heater mounting surface, effectively preventing steam or water bypass that can