Wayne WCS50V cast iron sewage pump is great for 18 in. sewage basins, septic tanks and lift stations. Features a heavy-duty 1/2 hp motor and a vertical switch for automatic operation. Pump has a max flow rate is 9960 Gallons Per Hour at 0 ft. 7980 GPH at 10 ft. of discharge lift. Professional grade cast iron motor and pump housing with stainless steek fastener. Corrosion-resistant, epoxy or powder coated submersible sewage pump with Bottom suction design allows this pump to pass 2 in. solids.