The 3/10 HP Model BN53 nonautomatic Effluent Pump with a piggyback variable level float switch is designed for use in sump or septic applications. This corrosion resistant pump will provide the dependability expected from a Zoeller pump. Backed by a 3-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.