this specific kit (383-600-070) is sized for the larger Ultra 550 and 750 and SlimFit models

significantly extending the service life of the tank lining in harsh water conditions

reducing noise and mechanical stress on the heat exchanger

Precision Metering: Delivers a consistent fuel-to-air ratio for optimal heating system performance

ASCO EF8210G54 Valve 321894-706 this specific kit (383-600-070) isThe ASCO EF8210G54 is a high performance 2 way normally closed solenoid valve engineered for precision fluid control in industrial environments. This pilot operated general service valve features a robust 1 inch NPT connection and a brass body designed for longevity in demanding HVACR and process applications. Capable of handling 13 Cv high flow capacity, it manages 0 150 PSI for air inert gas and 0 125 PSI for water and light oil. The EF8210G54