Rule High Water Bilge Alarm
Defender Home Page
Phone: 800-628-8225 Fax: 800-654-1616 Int'l.: 860-701-3400 Email: Contact Us
Shipping Info
no sales tax Defender Home Page
Your Cart

View Cart View Shopping Cart
Check My Order(s)
Track My Package(s)
Conversion Chart
Shopping Areas
Boats & Motors
 Defender Seal

Rule High Water Bilge Alarm

  • Rule-A-Matic Plus Automatic Float Switch with In-Dash Gauge
  • Nominal Voltage: 12 Volt DC, Max. Current Draw: 20 Amps
  • In-Dash Gauge Features Visual and 85 dB Audible Alarms
  • Item #: 
    Model #: 
    Shipping Weight: 
    0.70 Lbs.
    Our Price:
    Status:      In Stock



    Rule High Water Bilge Alarm


    • Includes Rule-A-Matic Plus automatic float switch and in-dash gauge
    • In-dash gauge features both a visual and an audible (85 dB) alarm
    • Unit allows constant monitoring of an unmanned compartment(s)
    • Switch turns bilge pump on when water level reaches 2" – turns pump off when water level reaches 3/4"
    • Environmentally friendly mercury-free design
    • Float switch with fully integrated, impact-resistant cover protects against debris and jamming
    • Exclusive moisture-tight seals
    • Ignition protected
    • Complies with CFR 182.530 which requires a visual and audible alarm in each unmanned space on commercial vessels at least 26 ft. in length
    • 2-year warranty


    • Rule Model No. 33ALA
    • Nominal Voltage: 12 Volt DC
    • Max. Current Draw: 20 Amps
    • Wire Size: 14 AWG
    • Dimensions (Float Switch): 2-1/4" x 5" x 2-1/64"
    • In-Dash Gauge Cut-Out: 2-1/8" diameter

    See More Information for this Product

    WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to

    Rule 3-Way Lighted Rocker Panel Switch
    Item #: 506493
  • 3-Position Rocker Switch (Automatic / Off / Manual) with Indicator Light
  • Select Voltage, Max. Current Draw: 20 Amps @ 12 Volt DC
  • Controls Any Bilge Pump Equipped with an Automatic Float Switch
    From: $33.99
    To: $40.99
    Model #:
    Multiple Models Available
    Rule SuperSwitch Bilge Pump Float Switches
    Item #: 506496
  • Select with or without Fuse Holder
  • Nominal Voltage: 12 / 24 / 32 Volt DC, Max. Current Draw: 20 Amps
  • Serves up to (3) Outlets with Exceptional Flow & Consistent Water Pressure
    From: $44.99
    To: $51.99
    Model #:
    Multiple Models Available

    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