RULE BILGE PUMP FLOAT "SUPER SWITCH" 12-32V WITH FUSE. Large float provides more buoyancy, less on and off cycling. Wire is kept up and out of the way. No battery drain. Works with 12 to 32 volts DC, up to 20 amps. No diaphragms, points or reeds. Optional Rule Super Switch Guard prevents flotsam from jamming the switch in the on or off position. With exclusive push to test button on guard. *MERCURY FREE*