The Rheem Flame Rod FL1 with Gasket, part number RTG20212BE, is an essential component designed for Rheem tankless gas water heater systems. This specialized flame rod, accompanied by a gasket for secure installation, detects the presence of a flame within the unit. It ensures reliable ignition and safe operation by monitoring the flame status, contributing to efficient heating performance. Engineered specifically for Rheem units, this flame rod guarantees optimal functionality, providing consistent and dependable hot water supply for residential and commercial use.