Rule 500 Automatic Bilge Pump 25S 12v

Rule 500 Automatic Bilge Pump 25S 12v, 3/4 inch hose, Rule 500 gph automatic pumps turns on and checks for water approximately every 2.5 minutes. During this check the pump runs for about one second and measures for resistance or drag on the impeller. If resistance is present this pump will run as long as water is present. When no resistance is measured the pump will shut off and returns to its 2.5 minute cycle. Pump height is 4 inches x 2-3/8 inch wide and deep. Draws 1.9 amps at 12volt. 3/4 inch hose size outlet.