The Rheem 16818 Coil is a critical component for efficient heat exchange in tankless water heaters. This coil is constructed from high-quality materials to ensure durability and optimal performance. Designed to fit various Rheem models, it facilitates effective heat transfer, enhancing the overall efficiency of your water heating system. The coil's dimensions are engineered for easy installation, and it meets industry standards for safety and reliability. Ideal for both residential and commercial applications, this coil helps maintain consistent water temperatures and reduces energy consumption.