The Hayward pump volute is designed for compatible Super Pump applications where the main wet-end housing needs replacement. A volute like this is useful because it forms the chamber around the impeller and directs water through the pump, making it essential to both hydraulic performance and structural support.This replacement is especially useful when the original volute is cracked, leaking, warped, or damaged beyond practical repair. Replacing it can help restore the wet-end condition of the pump and improve confidence in the overall assembly.The SPX3520AA is a practical replacement for compatible Hayward Super Pump systems that need renewed volute support and cleaner long-term operation. Hayward pump volute Fits compatible Super Pump applications Helps restore the wet-end housing around the impeller Useful when the original volute is cracked or leaking Supports cleaner and more dependable pump performance