Home > Pumps, Plumbing & Hose > Pumps > Automatic Bilge Pump Switches
Click on image to see ordering information.
Sort By:
Page of 1
Attwood Automatic Float Switch - Attwood 4202-7 Float Switch Ultra Safety Systems Ultra Pumpswitch Mini Ultra Safety Systems Ultra Pumpswitch Junior
Converts bilge pumps to fully automatic operation. Maximum amp draw is 12 amps (at 12-volt D.C.) or 6-amps (at 24-Volts D.C.). Features a compact, low profile design that mounts on any surface from a horizontal up to a 24° angle. Incorporates a reliable and affordable mechanical switch that actuates pump motor at 2” water level. Wire leads do not flex or hinge with the float as on some competitive models. Integral cover dampens bilge sloshing to reduce pump cycling, and prevents debris interference. Sealed switch mechanism resists moisture, fume-ignition, and electrical shock. Contains no mercury, which is listed as a health hazard and “Persistent Toxic Substance” in over 26 states.

Float switch installs directly onto the rear slots of the V-Series pump bracket. Features a convenient test knob to test pump operation.
Click on product image to view and order available models. Click on product image to view and order available models.
Ultra Safety Systems Ultra Pumpswitch Senior Johnson Pump Float Switch 26014 Johnson Pump Volt Ultima Bilge Pump Switch - 36303 - 12/24 VDC
Johnson Pump Float Switch 26014
List Price: $20.33
Our Price: $14.23
Click on product image to view and order available models. Gull automatic bilge pumping operation. Time-proven micro switch without mercury. When water exceeds the acceptable level, pump is turned on by a rolling steel ball, which changes the pressure on the micro switch. Attaches to any Johnson Pump bilge pump through the clip on “T-slot” and can be used with 6, 12, 24 or 32 VDC systems. Made in U.S.A. Digital technology uses the patented Minus field effect detector cells producing micro-electrical fields that detect disruptions caused by water and fluids. Director cells are totally sealed and are never in contact with water, will not corrode and are not affected by oil or foreign debris. No moving parts, totally sealed solid state electronics and field detectors, no mercury and no exposed sensors eliminate corrosion possibilities and makes the Ultima switch environmentally sensitive. Activates at a 2” fluid level and deactivates at 3/4” fluid level. 3 second delay prevents false starts. Rated to handle pumps up to 20 amps at 12 or 24 volts. Made in U.S.A.
Jabsco Hydro Air Switch - 59400-0012 - 12 VDC Whale Electric Field Sensor Bilge Pump Switch Rule 35A Automatic Bilge Pump Switch - Rule #35A Float Switch
Jabsco Hydro Air Switch - 59400-0012 - 12 VDC
List Price: $77.88
Our Price: $60.75
Whale Electric Field Sensor Bilge Pump Switch
List Price: $65.70
Our Price: $58.99
Rule 35A Automatic Bilge Pump Switch - Rule #35A Float Switch
List Price: $49.88
Our Price: $30.99
Sale Price: $27.99
Ultra reliable bilge switch, which will automatically operate bilge pumps once water level reaches 2 1/4" (55mm).

Model No.: 59400 series
Air Operated
No Submerged Electrics
Safe and Reliable
Ignition protected (to ISO 8846 Marine)
This innovative sealed, solid-state switch has no moving parts to wear out or seals to leak. It senses bilge water levels automatically controls the pump. All cmpoonents are protected from exposure to solvents or corrosion.
Voltage: 12V - 24V
Maximum Amps: 20
Powerful bilge pump and a new non-mercury float switch in a single housing. While fully automated, the pump will only turn on when the water level rises. There is no cycling and battery drain. The pump remains off until the internal float switch rises. The pump then stays on until the water is evacuated. The pumps’s internal computer senses no load (water) against the impeller and then shuts off. A detachable strainer provides easy access to the impeller area for removal of debris.
Rule-A-Matic Plus Automatic Bilge Pump Switch - Rule #40 Rule-A-Matic Float Switch Rule Super Switch Automatic Bilge Pump Switch - 37A
Rule-A-Matic Plus Automatic Bilge Pump Switch - Rule #40 Rule-A-Matic Float Switch
List Price: $63.93
Our Price: $42.99
Sale Price: $38.99
Rule Super Switch Automatic Bilge Pump Switch - 37A
List Price: $74.23
Our Price: $49.99
Sale Price: $44.99
Sleek and rugged, the Rule-A-Matic Plus float switch has a strong, fully integrated, impact resistant cover, which protects against debris and jamming. 14 gauge highly abrasive resistant marine grade wire, and a built-in test feature. Designed for pumps drawing upt to 20 Amps Model 40A and 40FA now includes a 2 year warranty.

Voltage: 12, 24 or 32 VDC
Amp Draw: 20 amps
Dimensions: (L x W x H) 4 7/8 x 2 1/2 x 2 3/4 (inches)
Now backed by a 5 year warranty, the non-mercury SuperSwitch is designed for the toughest applications. Design includes marine grade 14 gauge "blocked wire", larger float for increased buoyancy, removable base for easy servicing and a snap switch design capable of handling pumps drawing up to 20 Amps.

Voltage: 12, 24 or 32 (Vdc)
Amp Draw: 20 amps
Dimensions (L x W x H): 5 x 2 x 2 (inches)