This is a Speck 4 HP Pump Motor, 1-Phase, 208-230 Volts, with a threaded M12 shaft, and a 56Y frame. This E-Plus motor is designed for Speck 21-80 single phase pool pumps.
Speck motors have been carefully engineered to meet the rugged demands of the pool and spa industry. The motor is easy to replace. No plumbing is disturbed when removing the motor.