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Rule Float Switch for Bilge Pump

Product Description

Bilge pumps are designed to remove water that reaches the bilge. Non-automatic pumps require a device to control the pump, engaging the pump when water enters the bilge, and then disengaging the pump when water has been removed. Xylem’s Rule brand offers a portfolio of bilge pump float switches that are designed to suit all boat requirements and pumps from 360 GPH, up to 4000 GPH.

Year after year, the Rule-A-Matic remains a popular bilge pump switch for boaters. Featuring a removable base for easy cleaning and servicing, a mercury-free snap switch tested to over one million cycles, and marine-grade blocked wire, the Rule-A-Matic is designed for pumps drawing up to 14 amps. The Rule-A-Matic comes with a 2-year warranty.


  • Fits multiple pump sizes
  • Removable base for easy cleaning and servicing
  • Interchangeable mounting bases for replacement or upgrade (models 35A & 37A)
  • Marine-grade blocked wire
  • Mercury free snap switch tested to over one million cycles and marine grade "blocked" wire
  • Designed for pumps drawing up to 14 Amps
  • Complete with built in fuse holder
  • 2 year warranty
  • Dimensions: 4 1/2" x 1 1/2" x 2"

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