The Sta-Rite Max-E-ProXF pump is the most powerful, efficient pump in Sta-Rites Max-E-Pro line. This high performance pump was engineered and manufactured using the most advanced computer-aided design, making it the ideal choice for your residential pool or commercial pool. Created to work with multiple water features, such as slides and waterfalls, the Sta-Rite Max-E-ProXF pump offers increased efficiency through the advanced impeller design. In addition, the unique hydraulic isolator separates the priming water from the pumping water, resulting in a smoother flow, faster priming, and higher efficiency.