The 1 HP Model N4270 nonautomatic Sewage Pump is designed to remove sewage or effluent from sewage ejector or septic system applications. This model features a double seal, providing extra protection for the motor. This corrosion resistant pump will provide the dependability expected from a Zoeller pump. Backed by a 1-year warranty, every pump is submerged in water and tested to its published performance curve, ensuring it meets your expectations and delivers peace of mind right-out-of-the-box.