Rule-A-Matic Float Switch | Rule 35A Float switch works with non-automatic bilge pumps to activate pump when bilge water level reaches 2 in. & shuts pump off when water level reaches 3/4 in Rule 35A float switch Automatic on/off control switch for 12 or 24 volt DC electric bilge pumps or alarms Removable base for easy installation and cleaning Completely sealed metal capsule prevents water intrusion Environmentally responsible mercury free design Snap switch design tested to over 1,000,000 cylces @ 12 volts DC Features 28 in. abrasion resistant 16 AWG marine grade blocked wire Mounting screw provision in base 14 amps maximum rating @ 12 volts DC 7 amps maximum rating @ 24 volts DC Requires appropriate size fuse for the bilge pump ISO 8846 marine ignition protected 5 in. length 1 3/4 in. width 2 5/8 in. height 2 year manufacturer warranty Replaces Rule 35, 35WG