The Rheem RTG20319BG Program Chip Kit is designed for LP gas applications, ensuring optimal performance in Rheem tankless water heaters. This essential component allows for precise programming and control, enhancing the efficiency of your heating system. The kit includes a high-quality chip that meets industry standards, ensuring compatibility with various Rheem models. With easy installation, this chip kit is perfect for homeowners looking to upgrade their water heating system. Dimensions and specifications are tailored for seamless integration, making it a reliable choice for efficient hot water delivery.