Description:
An internal computer chip cycles these pumps on every 2.5 minutes, then quickly shuts them down if no water is detected. Built-in strainer bases snap off to make cleaning easy. Completely submersible, rust-proof, corrosion-proof and ignition-protected. Three-way wiring enables connection to a switch for manual override or indicator light. The small 500gph pump is designed to handle spray and rainwater.  
 
Specs:
Automatic 1.9 Amps at 12 Volts DC 500 Gallons per Hour Capacity 3/4" Diameter Submersible Centrifugal Pump Corrosion Resistant Removable Base Built-In Switch 12 Volts Built-In Switch Cycles Every 2.5 min. Plastic