The Rheem P-1603 Fuel Conversion Kit enables the conversion from liquid propane (LP) to natural gas (NG) for the Cx199 model. This essential kit ensures your heating system can adapt to different fuel sources, enhancing its versatility. Made from high-quality materials, it meets all necessary safety and performance standards. The kit includes all components required for a straightforward installation, ensuring your system runs efficiently. Perfect for both residential and commercial applications, this conversion kit is vital for maintaining optimal heating performance.