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this is an automatic reset snap disc
Precision Poppet Design: Utilizes a high-grade rubber seat poppet to ensure consistent regulation and tight shutoff at low flow rates
Direct Compatibility: Precision engineered to replace Grindmaster A537-048R-UR and MET133-UR components
Key Benefits Precise Thermal Calibration: Factory-set to trip at 175°F and reset at 135°F for consistent safety performance
York S1-024-21678-700 Relay this is an automatic resetThe York S1 024 21678 700 is an OEM 24V SPDT Relay designed for heavy duty switching in residential and commercial HVAC control systems. This component serves as the direct 024 21678 000 replacement, ensuring seamless integration into existing control boards without requiring circuit modifications. Engineered with a 24VAC 50 60Hz coil, this Single Pole Double Throw relay provides the necessary electrical isolation between low voltage thermostat
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US$ 89.98