Grundfos HS range of compact, horizontal, centrifugal pumps is designed for small domestic and industrial water supply systems. In addition to this, the HS range is suitable for incorporation in specialized OEM equipment. The HS pumps are non-self-priming, single-stage, horizontal centrifugal pumps with mechanical shaft seal and close coupled pump/motor shaft. The pumps have an axial suction port and radial discharge port and are mounted on a base plate. Buna-N O-rings are standard.