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/cast aluminum 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.