The Rheem Gas Control Valve Assembly, part number RTG20239AY, is an essential component for Rheem tankless gas water heater systems. This assembly regulates the flow of gas into the unit, ensuring precise control over heating output. Engineered for reliability and safety, it features durable construction and precise mechanisms for consistent performance. Specifically designed for Rheem units, this gas control valve assembly guarantees optimal functionality, providing efficient and dependable hot water supply for residential and commercial use.