Shreds Soft and Tough Debris: The 1 HP grinder pump features stainless steel blades that effortlessly cut through soft and semi-rigid debris like wipes, twigs, and zip ties to prevent clogs in sewage systems and sump tanks. Note: avoid rubber items or thick towels. Efficient 4200 GPH Flow Rate: The sewage pump delivers 4200 GPH flow and provides a max lift of 40 ft. Powered by 220V single-phase electricity for enhanced performance, it s ideal for situations such as basement sump basin and sewage ejector pump systems. DO NOT use in gasoline, alcohol, or biogas tanks. Clog-Free 2" Discharge: The sewage pump 2 inch discharge efficiently handles solids up to 2", ensures smooth and uninterrupted drainage, reduces maintenance needs, and enhances overall efficiency.