Heavy-duty SPST switch construction designed to withstand the high-temperature environment of the furnace blower compartment

While its primary role is moisture detection

ensuring the control board recognizes the signal immediately

providing a direct-fit solution for maintaining pneumatic control valve integrity in steam and hot water applications

Robertshaw 41-413 Round Ignitor Els PW 17895 Heavy-duty SPST switch construction designedProfessional grade heating systems require high response ignition to prevent delayed ignition cycles, making the Robertshaw 41 413 Round Ignitor a critical stock item for field service. Engineered as a hot surface ignitor, this unit is a direct fit replacement for the Carlin 87197S and Norton 201C, widely utilized in industrial burners, residential furnaces, and commercial boilers. Constructed from high purity recrystallized silicon carbide, the 41