The Duralast blower is designed to run all day and all night to better serve commercial pools and spas. Whether you have a health club, hotel or other commercial facility, you can depend on Duralast to keep your pool or spa running. Its heavy-duty motor boasts a high service factor, leading to much longer motor life. The outside-mounted bearings ensure a cool-running system that can handle a constant load. This blower comes in 5 speeds to best fit your needs, with either one and three-phase options available.