35A Rule-a-Matic Float Switch

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Rule 35A Rule-a-Matic Float Switch

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A standard bilge pump operates by a control switch that senses water and activates the pump. Rule’s Float Switches offer outstanding performance by using extra-large float chambers for increased buoyancy and detachable mounting bases that make them easier to install and remove for cleaning and inspection.

Our latest design now includes a removable base for easy cleaning and servicing, a mercury free snap switch tested to over one million cycles and marine grade "blocked" wire.



  • Maximum Current: 14(amps)
  • For automatic on/off bilge pump control.
  • Switch design prevents rapid on/off cycling.
  • Also available with fuse holder - see below
  • Mercury free snap switch

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