The Grundfos Unilift AP35B.50.08.A1V 1x230V 10m SCH is a stainless steel vortex waste water pump, max flow rate 5.5l/sec and max head 12m, 2" threaded connections and 35mm solids handling. The Grundfos Unilift APB range are vortex pumps designed for highly effective solids handling. The pumps can be used effectively with domestic sewage and waste water.