With 3 and .38HP, the Emerson 48 Frame Thru-Bolt Pool and Spa Motor is programmed to operate at two different speeds with outstanding quality and efficiency. Engineered with open drip proof technology, the Emerson 48 Motor is designed with ventilation openings, preventing water from damaging the motor while keeping it long lasting and reliable. Its soft starter model ensures the voltage torque is gently delivered throughout the motor, gaining power gradually to ensure maximum performance. Thermally protected, it can withstand harsh conditions and can install easily with its thru bolt mounting. For the best in replacement motors, Emerson offers the 48 Frame with 230V for reliable quality.