With state-of-the-art hydraulic design, this pump offers the highest water flow of any high performance pump with the lowest electrical consumption. Single speed, self-priming, high flow pump is ETL tested for efficient and quiet operation. Built to last a lifetime and is compatible with all cleaning systems, various filters and jet action spas. Heavy-duty, durable construction designed for residential and commercial applications. 1-1.5 HP 115/230 Volts, 2-2.5 HP 230 Volts. 2 in. suction and discharge ports.