This 2.5 HP impeller supports select Challenger High Flow, SuperMax, and SuperFlo pump applications where the wet end requires the correct horsepower-specific water-moving component. Proper impeller matching is important for flow and motor load. Use it in repairs where performance has dropped or where a pump rebuild calls for a clean internal replacement.Choose this replacement when you want a clean, part-specific repair rather than forcing a workaround that can create leaks, fit issues, or recurring service calls. Always match the part number, equipment series, horsepower, plumbing size, color, or application details before installation. Horsepower-matched component for compatible pump rebuilds Helps restore circulation after impeller wear or debris damage Supports more efficient water movement through the wet end Built for compatible Pentair Pool Products equipment applications