maintaining a 650 psig maximum working pressure

you must use a switch with the exact 0

The 354081 is the replacement sensor probe only

Leak Prevention: High-compression recovery ensures a gas-tight and water-tight seal against the header casting faces

Weil McLain 511-330-184 Igniter Els PW 17895 maintaining a 650 psig maximumThe Weil McLain 511 330 184 is a Norton 201N hot surface igniter designed for precision ignition in residential and commercial boiler systems. This silicon carbide igniter is a critical service part, featuring high temperature lead wires and a specific White Rodgers connector for seamless integration with compatible ignition modules. Engineered to provide high wattage heat output, this replacement boiler igniter ensures reliable fuel to air