Rule 800Automatic Round 12vRule Automatic bilge pumps eliminate the need for a separate float switch to activate the pump, Once power is supplied starting and stopping is completely automatic, The pump checks for water every 2 + minutes by turning on for a second and measuring load against the impeller, If water is present the pump remains on until the water is removed, Thereafter the pump resumes its 2-1/2 minute check cycle, The automatic pumps feature two positive leads: an automatic (brown) and a manual override (brown with a white stripe), Product : RULE 800 GPH ROUND AUTOMATIC BILGE PUMP 12V Manufacturer : RULE Manufacturer Part No : 20RS UPC : 042237085771 SKU: CW34561