Attwood Bilge Switch - Panel-mounted rocker switches for use with pump that draws 10 amps or less. 1/4"" spade terminals. 6-volt through 32-volt D.C. only, 10 amps maximum. Plate is 2-13/16"" x 1-7/8"". Hole size is 1-1/2"" x 7/8"". Panel-mounted rocker switches for use with pump that draws 10 amps or less