The Gas Valve - LP/NG for Rheem RTG20074AJ is a critical component for regulating gas flow in Rheem tankless water heaters. This valve is compatible with both liquid propane (LP) and natural gas (NG) systems, ensuring versatility in installation. Constructed from robust materials, it meets industry standards for safety and performance. The valve features precise control mechanisms to maintain optimal gas pressure, enhancing the efficiency of your water heating system. Ideal for replacement or upgrade, this gas valve is essential for maintaining the reliability of your Rheem water heater.