Lochinvar & A.O. Smith 100208557 Sensor 319852-301 this corresponds to a 1-1/2"

this corresponds to a 1-1/2" Nominal Inside Diameter (ID)

facilitating precise refrigerant flow reversal to switch between heating and cooling cycles

This spring is designed exclusively for the Maxitrol RV81 and 210D series regulators

This 13 Series valve is rated for saturated steam service up to 250°F

Lochinvar & A.O. Smith 100208557 Sensor 319852-301 this corresponds to a 1-1/2"The Lochinvar & A. O. Smith 100208557 Sensor is a high precision dual outlet sensor engineered for critical temperature monitoring in commercial boilers and high efficiency water heaters. As a veteran grade OEM replacement part, this thermistor based component ensures the integrated control board receives real time data to manage the delta T across the heat exchanger. Accurate monitoring by the 100208557 temperature sensor is vital for preventing