When your old pool pump motor calls it quit, have a replacement A.O. Smith 1.5-HP 3450 RPM Single-Speed Pool Pump Motor ready to swap in so you can get back enjoying your relaxing day on the water. This 1.5-horsepower full-rated replacement motor for above and in-ground swimming pool pumps has a threaded shaft and fits most pumps that require a square flange motor. It operates on both 115 and 208-230-volts and has a 3450 RPM. The motor features a 1.5 service factor, an automatic surge protector, capacitor start, and an open drip-proof housing for cooler operation. The ST1152 pool pump motor is compatible with pump series models like Sta-Rite Dura-Glas, Dura-Glas II, Max-E-Glas, Max-E-Glas II, Dyna-Glas, and Max-E-Pro, Hayward Max-Flow II, Pentair Whisper-Flo, Challenger, Ultra-Flow, Pinnacle, and Anthony AR2. A.O. Smith Century offers the very best in US-manufactured electric motors. With a comprehensive line of electric motors for commercial, industrial, and residential pump and general purpose applications, century is a highly recognized brand in the leisure water industry for its breadth of product offering, quality, and reliability.