it is optimized for high-pressure applications

Does this switch resolve a "Pressure Switch Stuck Closed" error

while commonly used in natural gas boiler configurations

Durable Construction: Rated for a maximum of 600V UL/690V IEC

and evaporator coil sensing

White-Rodgers 21D64-5PK HSI R-410A it is optimized for high-pressureWhen you're out on a service call dealing with a cracked silicon carbide igniter, the White Rodgers 21D64 5PK HotRod is the professional grade solution to keep on your truck. This 5 pack of 120V silicon nitride igniters is designed specifically for high efficiency gas furnaces, boilers, and water heaters. Unlike brittle carbide models, the nitride construction in this universal hot surface igniter handles the thermal stress of modern ignition cycles