Attwood's automatic float switch mounts onto any surface from horizontal up to a 24° angle. Wire leads do not flex or hinge with the float like some competitive models. Integral cover dampens bilge sloshing and filters debris. Sealed float switch resists moisture, fume ignition, and shock. Mercury-free design. 12/24V. 12 amps. 2-5/8" x 4-1/4".