this bolt-on kit replaces fixed-bore metering devices (pistons/orifices) to provide the variable flow control required for modern high-SEER performance standards

Key Benefits for Technicians: Precision Fitment: Pre-cut to 22-3/4 inches with 1/8-inch outer diameter for direct compatibility with Weil-McLain boiler models

Replace the bushing if you observe the dispense lever "wobbling" or if the valve stem is no longer seating perfectly flush against the gasket

Using this in a different appliance brand can lead to dangerous combustion states

Smith ignitor maintains consistent amperage draw to avoid nuisance lockout codes or "no hot water" service calls

York S1-025-26354-002 Control 322838-754 this bolt-on kit replaces fixed-boreThe York S1 025 26354 002 is a professional grade SPST Temperature Control engineered for precise thermal regulation in York HVAC units. This OEM replacement part is configured as a Single Pole Single Throw switch, specifically calibrated to open at 55F and close at 28F. Designed for reliability in demanding commercial and residential environments, this control ensures critical system components operate within safe thermal parameters, preventing