Zoeller 161-0010 Model H161 High Head Effluent Pump 0.5 HP 200V 1PH 20' Cord AutomaticZoeller Model H161 High Head Effluent Pump Description Our Model H161 automatic Effluent Pump is designed to remove effluent or ground water in effluent applications. The 1 2 HP H161 is a time tested and reliable effluent pump. The white polypropylene float is solid so it cannot become waterlogged. This ensures that it is always buoyant and able to turn the pump on when necessary. The pump's vortex impeller allows it to pass 3 4" spherical solids. The