The Resideo/Honeywell WV8840C1605 and Rheem SP20832B are gas water heater valves designed for natural gas water heaters. These replacement parts are essential for controlling the gas supply to the water heater, ensuring efficient and safe operation. With the Rheem brand reputation known for quality and durability, these models are engineered to meet the specific needs of gas water heating systems, providing reliable performance for your home. Used once. Fast shipping. T2