Compact, automatic, fully submersible electric pump Built-in float switch! (No separate float switch is needed) No power use until pump is activated by internal float switch (when water level rises) Compact, efficient, long life motor Rustproof and corrosion resistant Stainless steel shaft High-impact durable plastic housing Quick release strainer for easy maintenance Extremely efficient, very low current draw and offer high capacity output Water cooled long-life motors Ignition protection to protect the pump against high current Water/moisture tight seals Silent and vibrationless operation Anti-airlock protection Will not burn out when run dry Integrated float switch TEST button at rear of unit Can be used with switch panel for manual override Includes comprehensive user manual with installation instructions and wiring diagram