it is rated for NEMA 1 indoor use

allowing for targeted cleaning or replacement of the flame rod rather than trial-and-error part swapping

What are the cross-reference part numbers for this EPDM insert

Simplified Field Wiring: Standardized terminal lugs allow for fast lead attachment and secure connections for field technicians

The H91 series should be mounted according to manufacturer specifications

Weil McLain 511-330-090 Control Module Els PW 17895 it is rated for NEMAThe Weil McLain 511 330 090 Control Module is a high performance intermittent pilot ignition control engineered specifically for technical compatibility with Weil McLain CGi, CGs, and CGt series gas fired boilers. As a critical component of the combustion system, this UT 1107 1 control module features a factory calibrated 10 second pre purge cycle, ensuring the combustion chamber is cleared of residual gases before ignition for enhanced boiler safety