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Rule 37A SuperSwitch Float Switch

Rule 37A SuperSwitch Float Switch

SKU: 29-37A

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


All models are suitable for pumps that draw up to 20A, except the Model 35 Rule-A-Matic, which is suitable up to 14A. This non-mercury SuperSwitch Float Switch is designed for the toughest applications.


Design includes marine-grade, 14 gauge blocked wire, a larger float for increased buoyancy, removable base for easy servicing and a snap-switch design capable of handling pumps drawing up to 20A at 12 VDC.


  • Marine-grade, 14 gauge blocked wire
  • Extra-large float for maximum buoyancy
  • Removable base for easy servicing
  • Suitable for pumps that draw up to 20A
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