The tin-plated bulb and capillary resist corrosion in high-moisture environments

Its robust design minimizes calibration drift

As the direct cross version of 626559

replacing both 49L88 and 49L8801 part numbers without field modification

York S1-024-35261-000 Pressure Switch The tin-plated bulb and capillaryThe York S1 024 35261 000 Pressure Switch is a critical safety component designed for precise monitoring of combustion air and exhaust gas flow within high efficiency HVAC systems. This 1" WC SPNO (Single Pole Normally Open) switch is engineered to close on fall, ensuring that the inducer motor maintains proper static pressure before the ignition sequence initiates. As a direct OEM replacement part, this unit serves as the updated cross reference for