The Rheem Thermistor Wiring Harness, part number RTG20319Y, is a vital component for Rheem tankless gas water heater systems. This specialized harness facilitates the connection of thermistors, ensuring accurate temperature monitoring and control within the unit. Engineered with durable materials and precise wiring, it guarantees reliable performance and seamless integration with Rheem units. Specifically designed for Rheem systems, this wiring harness ensures optimal functionality, contributing to efficient heating and consistent hot water supply for residential and commercial applications.