Fully Recessed Impeller - Allows large, stringy or fibrous material to pass through the pump without binding or clogging. Concentric Casing - Concentric design facilitates flow of pumpage and solids through the pump while minimizing loads. Legs - Bolt-on legs provide stability on sump floor. Mounting Flexibility - Flanged suction and horizontal discharge allow pump to stand or be mounted on optional slide rail. Optional dry pit arrangement also available. Interchangeability - Casing and optional wear ring are interchangeable with Goulds Model HS (horizontal) and VHS (vertical cantilever) pumps to reduce inventory.