Midco International 641812 Spark Rod Assembly 320720-756 and an outside diameter of

and an outside diameter of 21 inches

Always verify the pitch of your existing fan blade before installation

Simplified Installation: Standard SPST configuration and common wiring leads allow for rapid field replacement during emergency service calls

Precision Threaded Connections: Features standard 1" NPT boiler connections and integral tappings for gauge glass installations

Midco International 641812 Spark Rod Assembly 320720-756 and an outside diameter ofThe Midco International 641812 Spark Rod Assembly is a critical ignition component engineered for high demand industrial heating applications. Designed specifically for the Economite RE4400DS HTD burner, this assembly ensures consistent spark delivery to initiate efficient combustion cycles. As a veteran grade HVAC replacement part, it is built to withstand the extreme thermal cycling and high voltage environments typical of commercial heating