The RHEEM RTG20235AM Program Chip is designed for liquid propane (LP) water heating systems, enhancing the performance and efficiency of RHEEM tankless water heaters. This chip allows for precise control of water temperature and flow, ensuring optimal operation. Easy to install, it is compatible with various RHEEM models, making it a versatile choice for upgrades or replacements. Constructed with high-quality materials, the program chip meets industry standards for safety and reliability, ensuring your water heater operates at peak performance.