Superior Pump model 92151 1 HP stainless steel, cast iron sump pump with a vertical piggy-back float switch will move up to 5160 Gallons Per Hour at 0ft and 4500 Gallons Per Hour at 10ft of lift. High performance clog resistant thermoplastic vortex impeller. Will pump water up to a max height of 25 ft. Equipped with suction screen to filter out large debris and handles up to 1/2 in. solids with ease.