The Rheem RTG20319AE Display Control Wiring Harness is an essential component for Rheem tankless water heaters. This wiring harness connects the display control to the main unit, ensuring seamless communication and functionality. Designed for easy installation, it features high-quality materials that guarantee durability and reliability. This harness is compatible with various Rheem models, making it a versatile choice for repairs and replacements. Ensure your water heater operates efficiently with this critical wiring component.