Groco Model AS-100 Automatic Bilge Pump Control Kit Eliminates the possibility of pump damage due to dry running. Maximum amp draw: continuous 10 amps; intermittent 20 amps. Features: Switch cuts pump on and off as needed. Compatible with any model or voltage bilge pump. No float to stick or become waterlogged. Molded neoprene air bell. 3 ft. of Excelon air tube makes installation easy. When properly installed, AS-100 cuts pump on at about 2-3/4" of bilge water and off at about 1" of bilge water.