The upgrade from the RPM Supreme Kit to the RPM Ultimate Kit signifies a substantial enhancement in Gauged Porcelain Tile Panel installations for professional contractors and remodelers. While the Supreme Kit already offers a high level of customization and ergonomic efficiency, the Ultimate Kit takes these features further. It includes a wider range of rail sizes and innovative coupling designs, allowing for more diverse and complex project setups. One of the key differentiators is the inclusion of specialized accessories in the Ultimate Kit, such as tools for creating waterfall countertop edges, which are not available in the Supreme Kit. This addition makes the Ultimate Kit particularly valuable for intricate installation tasks, offering solutions that simplify even the most challenging layouts. The Ultimate Kit also excels in handling larger-scale projects with ease, providing versatility and robustness that exceed the already high standards set by the Supreme Kit. Its components work together seamlessly, ensuring an efficient and streamlined workflow, which is crucial in the fast-paced construction environment. The Ultimate Kit's ergonomic design reduces strain and increases productivity, a continuation of the Supreme Kit's approach but with enhanced features. It represents a comprehensive and cost-effective solution, bundling all necessary tools and functionalities into one package. Ideal for seasoned contractors and specialized remodelers, the RPM Ultimate Kit is a smart investment, accommodating the growing needs and complexities of modern tile installations. This upgrade from Supreme to Ultimate is more than just an addition of tools; it's an elevation in the quality, efficiency, and scope of tile installation capabilities.