The Rheem RTG20255C Tankless Commercial Conversion Kit is specifically designed for the H-90XLN-1 model, allowing for seamless conversion to commercial applications. This kit includes all necessary components for a straightforward installation, ensuring compliance with industry standards. Made from durable materials, it enhances the performance and efficiency of your tankless water heater. The conversion kit is ideal for businesses looking to upgrade their hot water systems, providing reliable service and optimal energy savings. Transform your water heating setup with this essential kit.