Laars Heating Systems RW2013400 Gasket 321894-708 This microprocessor-based module manages the

This microprocessor-based module manages the ignition sequence

This comprehensive kit is a direct replacement for Weil McLain Ultra 550 and 750 boilers

A 440V capacitor will provide a longer service life in a 370V application due to its higher dielectric strength

ensuring it sits below the internal oil level and maintains firm contact around the entire circumference

Laars Heating Systems RW2013400 Gasket 321894-708 This microprocessor-based module manages theAs a field technician, you know that a compromised seal at the combustion chamber is a direct path to pressure loss and ignition failure. The Laars Heating Systems RW2013400 Gasket is a critical OEM replacement part designed specifically for the flame sensor mounting interface. This high temperature gasket ensures an airtight seal between the sensor body and the burner plate, preventing flue gas leakage and maintaining the precise internal pressure