Lennox 11U64 Pressure Switch 321894-709 The Supco ignitor kit includes

The Supco ignitor kit includes essential components required for quick replacement

As a direct replacement for 3H33749-10

Designed specifically for International Comfort Products systems

as the factory-molded straight boots provide the necessary seal against moisture and debris

Lennox 11U64 Pressure Switch 321894-709 The Supco ignitor kit includesThe Lennox 11U64 Pressure Switch (Cat # 11U64, Part # 104371 01) is a precision calibrated OEM furnace replacement part engineered for high performance draft verification. This 0. 65" WC SPST pressure switch is the direct substitute for the legacy 93W86 model, designed to monitor inducer motor performance and confirm proper airflow before the ignition sequence initiates. Built with brass terminals, fine silver contacts, and a stainless steel