This Armstrong Pumps 180203-687 Hydronic Circulating Pump is a reliable and efficient choice for your hot water circulating needs. With a rated power of 10 hp and a supply voltage of 115 V, it is compatible with a 1/2 inch intake pipe and has a depth of 8.700 feet. This centrifugal pump is designed for use with hydronic circulating systems and features a 1 phase motor. It is made by ARMSTRONG PUMPS, a trusted brand in the industry.