This is a Regal Beloit Century Centurion B2843 Square Flange 2 HP Pool and Spa Pump Motor, 3450 RPM, 208-230 Volts, 56Y, Threaded Shaft, Full-Rated, E Plus Energy Efficient.
Century motors by Regal have been carefully engineered to meet the rugged demands of the pool and spa industry. They are the innovative leader in pool pump motors.
