These bilge pumps have a moisture-tight seal, stainless steel motor shafts and a non-vibrating silent running design. The 500 and 1100 gph automatic pumps are the worlds only computerized pumps available in this size class. Installs with just three wires so you can easily upgrade any manual pump to fully automatic. Monitors the water level without a float switch and works on any existing toggle switch. Auto Float Switch - Turns any manual pump into an automatic. Type: Submersible Bilge Pump.
