always check for airflow restrictions like dirty filters

This valve eliminates the need for separate regulation components

it includes high-tolerance internal parts such as the diaphragm

always verify your specific valve body model number before installation to ensure the diaphragm material and plunger length are correct for your application

Weil McLain 510-811-221 Pilot Assembly Kit Els PW 29614 always check for airflow restrictionsThe Weil McLain 510 811 221 Pilot Assembly Kit is a critical OEM replacement part engineered specifically for Weil McLain CGi gas boilers (models CGi 25 through CGi 8). For technicians troubleshooting a boiler pilot light not staying lit, this kit provides a comprehensive solution by replacing the core ignition components. It includes the natural gas pilot burner, a precision calibrated pilot orifice, and the integrated pilot bracket, ensuring proper