The Basement Watchdog BW Series submersible sump pumps are ultra-compact and powerful. They feature a top discharge design making it ideal for use in sump pits. The powerful and energy efficient, continuous duty, permanent split capacitor (PSC) motor provides up to 4,400 GPH at 0 ft. lift and only pulls 4.2 amps. The pump will pay for itself in energy savings. The heavy duty cast iron housing along with dual ball bearings and dual seals protect the motor for superior performance. The caged dual float switch and built-in air relief vent provide extra protection for years of dependable service.