The Rheem Flame Rod FL2 with Wire and Gasket, part number RTG20212BG, is a crucial component for Rheem tankless gas water heater systems. This specialized flame rod, accompanied by wire and gasket for secure installation, detects the presence of a flame within the unit. It ensures reliable ignition and safe operation by monitoring flame status, contributing to efficient heating performance. Specifically engineered for Rheem units, this flame rod guarantees optimal functionality, providing consistent hot water supply for residential and commercial applications.