The Rheem Igniter with Gasket, identified by part number RTG20212BD, is a crucial component designed for Rheem tankless gas water heater systems. This specialized igniter, accompanied by a gasket for secure installation, ensures reliable ignition of the heating system. It provides efficient and consistent performance, contributing to the seamless operation of the water heater. Specifically engineered for Rheem units, this igniter guarantees optimal functionality and safety, delivering dependable hot water supply for residential and commercial applications.