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the 10-400 series is an ASME Section IV valve specifically designed for hot water heating service
ideal for low-pressure steam and hydronic heating
To maintain rated germicidal effectiveness
Steam Protection: Specifically designed to work with 3/4" siphons
Laars Heating Systems RE2319700 Temp Sensor 321702-401 the 10-400 series is anThe Laars Heating Systems RE2319700 is a high precision duplex temperature sensor engineered for critical monitoring in hydronic applications. This OEM replacement part features dual thermistor elements, allowing the control board to cross reference data points for enhanced safety and operational accuracy. Specifically designed as a duplex stack temperature sensor, it monitors exhaust gases to prevent over temperature conditions in high efficiency
