Automatic Float Switch with Cover - Attwood
Price: $26.26
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Part # 4201-7
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Don’t spend your precious time onboard constantly checking the water level in the bilge and activating the pump. Install the Attwood Automatic Float Switch with cover onto your manual bilge pump to convert its operation to automatic. When the water level reaches 2" high, the float switch automatically activates the bilge pump. Once the bilge is cleared, the pump is instantly stopped. The unit has sealed switch mechanism to resist moisture or electric shocks.

The wire connection included at the rear with no flex or hinge enables easy set up. Moreover, this float switch features a compact design and a low profile, allowing you to easily install it on any horizontal or up to 24⁰ angle platform. The integral cover reduces pump cycling and prevents debris interference to optimize the pump’s performance. This switch system is environmentally friendly as it has no mercury.

  • Triggers pump when water reaches 2" high
  • Sealed switch mechanism
  • Perfect for pumps that draw 12 amps, 6 amps and less

Features of Attwood Automatic Float Switch with Cover

  • Compact low-profile design
  • Easy to install on any surface from horizontal up to 24⁰ angle
  • No flex or hinge wire connections
  • No mercury
  • Includes test knob for test pump operations


  • Voltage: 12 and 24 volts
  • Wire connectors: 36"
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Works as advertised
by Allen from Millbury, Ohio on July 23, 2014
Product as described, works great.
(1 of 1 people found this review helpful)
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Failed to turn off on second cycle
by Doug from Greensboro, North Carolina on May 28, 2014
Really frustrating that it does not reliably shut off when and it ran down my battery. Ordered a different model and will try and get a refund for this one. You would expect a simple single pole single throw switch to toggle on and off. Quite a disappointment.
(4 of 4 people found this review helpful)
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What are the dimentions of this float switch.?
3-7/8" width, 5-1/4" depth, 2-7/8" tall.

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