ECO-FLO, 1/2 HP Cast Iron Sewage Ejector Pump. Heavy duty 1/2 hp cast iron sewage pump with piggy-back tethered float switch. The 1/2 hp motor is continuous duty rated and comes with a 20 foot power cord. This pump can handle up to 2" solid size and has capacities up to 7,500 gallons per hour and a max lift up to 24 feet.