This is a Hayward SPX3225Z1MR Standard Efficiency, Max-Rated, 3 HP Pump Motor with Square Flange. This motor is designed for Tristar SP3200X Series Pumps.
Hayward motors have been engineered to their high standards to ensure a rugged and long lasting motor for your pool or spa pump. Two sealed ball bearings offer ample capacity for extended life. Bearings are selected for quietness and are lubricated for life with greases specifically chosen for moisture and heat resistant qualities. Aluminum end frames are accurately machined for maximum concentricity and minimum runout.