The Hayward Seal Plate (SPX3020E) is the OEM replacement seal plate for Hayward pumps rated at 2-1/2 and 3 HP. The seal plate is the precision-machined housing component that holds the mechanical shaft seal in correct alignment between the pump motor and the wet end. Maintaining a proper seal plate ensures the shaft seal seats correctly, preventing water intrusion into the motor and maintaining pump integrity over the long term. Specifications Hayward Part Number SPX3020E Compatible Pump Rating 2-1/2 HP and 3 HP UPC 610377041362 Poolaroo Pro Tip When replacing a seal plate, always inspect the mechanical shaft seal at the same time. The two components wear together, and replacing the seal plate without addressing a worn shaft seal is a missed opportunity — and a likely callback. Consult your pump's exploded diagram using part number SPX3020E to confirm this is the correct seal plate for your specific pump model and horsepower before ordering.