The Rheem SP20172 Flame Sensor Kit is a reliable replacement part designed to ensure accurate flame detection in your heating system. Engineered for compatibility with Rheem water heaters, this sensor enhances safety by promptly detecting the presence of a flame and preventing gas flow when no flame is present. Easy to install and built to last, it helps maintain efficient and safe operation of your water heater. Ideal for professionals seeking dependable performance and peace of mind in flame sensing technology.