Defender Home Page
Phone: 800-628-8225 Fax: 800-654-1616 Int'l.: 860-701-3400 Email: Contact Us
Follow us on Facebook
Shipping Info
Defender Home Page
Your Cart
null View Cart View Shopping Cart
null Check My Order(s)
null Track My Package(s)
Conversion Chart
Shopping Areas
Boats & Motors
null Defender Seal null
promo A
promo B
promo C
promo D
Attwood Float Switch

Attwood Float Switch

  • Mercury-Free Automatic Float Switch with Integrated Cover
  • Nominal Voltage: 12 / 24 Volt DC, Max. Current Draw: 12 Amps
  • Converts Existing Bilge Pumps to Fully Automatic Operation
  • Item #: 
    Model #: 


    Shipping Weight: 
    0.50 Lbs.
    List Price: 
    Reg. Price:
    Sale Price:
    Status:  null In Stock

    Quantity : 


    Attwood Float Switch


    • Mercury-free automatic float switch with integrated cover
    • Compact, low-profile design mounts on any surface from a horizontal up to a 24° angle
    • Reliable and affordable mechanical switch activates pump at 2" water level
    • Wire leads do not flex or hinge with float
    • Integrated cover dampens bilge sloshing to reduce pump cycling and prevents interference from debris
    • Sealed switch mechanism resists moisture, fume ignition, and electrical shock
    • Mercury-free
    • 3-year limited warranty


    • Attwood Model No. 4201
    • Nominal Voltage: 12 Volt DC
    • Max. Current Draw: 12 Amps
    • Dimensions: 2-7/8" H x 3-7/8" W x 5-1/4" L

    For further details see Data Sheet for this product

    CA Prop65 warning

    Whale Electric Bilge Switch
    Item #: 503235
  • Mercury-Free Automatic Switch with Electric Field Sensor Technology
  • Nominal Voltage: 12 / 24 Volt DC, Max. Current Draw: 20 Amps
  • Electric Field Sensor Automatically Senses Water Level and Controls Bilge Pump
  •  Include
    Reg. Price

    Sale Price

    Model #:

    Have A Suggestion?

    Help us make our site better for everyone! Let us know you've found something wrong or frustrating on this page and we will improve it. Please mark each that apply.

    Product has been improperly categorized
    Page loads too slowly
    Product information is incorrect
    Page has errors or bugs
    Site is frustrating or difficult to use
    Product image is missing or wrong
    Cannot find my size
    Spelling errors on page
    Not enough product information

    Comments or Examples:
    Examples: Missing information such as dimensions and model number, typos, inaccuracies, etc...

    Please include your e-mail address below if you would like us to respond to your comments or questions.             

    Join Our Email List And Receive our Monthly Promotions
    Defender Email Specials
    Click Here For Our Privacy Policy