The Rheem NTC Probe Thermistor 3/4 in. is a precision temperature sensor designed for accurate monitoring in heating systems. This thermistor features a 3/4 inch diameter, making it compatible with various Rheem models. Constructed from high-quality materials, it ensures reliable performance and longevity. The NTC technology provides rapid response times, allowing for precise temperature control and improved system efficiency. Easy to install, this thermistor is essential for maintaining optimal performance in your heating system, adhering to industry standards for safety and reliability.