Rule 25SA 500GPH Electronic Sensing Bilge Pump - 12V, Automatic Submersible Marine Pump with Check Valve and Thermal Protection

500GPH Electronic Sensing Bilge Pump - 12V

In the next generation sensing bilge pumps, the 500GPH S series pump works on the principle of impeller resistance. The pump will turn on every 2-1/2 minutes for about one second to sense for water. If water is present, the pump will sense resistance and continue to run until all water is removed. After that, it will resume checking for water every 2-1/2 minutes.

Water is kept in check between 1/8" and 3/8"!!! Great idea when power conservation is needed and as an added benefit, no float switch is needed!

All that plus the added benefits of our standard bilge pump:

• Check valve included with hidden air vent to prevent airlocking
  
• True electromagnetic suppression (EMC)
  
• A built-in thermal cell that protects the pump and the vessel when things get too hot

These are the smallest automatic pumps available on the market!!!

Features:

• Completely automatic with manual override - No Float Switch Needed!
  
• Submersible and Ignition Protected
  
• High efficiency, low amp motor
  
• Stainless-steel shaft
  
• Includes backflow preventer

WARNING: This product can expose you to chemicals including 1,3-Butadiene which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

The Rule 25SA 500GPH Electronic Sensing Bilge Pump is an innovative, compact solution designed for reliable water removal in marine environments. Operating on a 12-volt power supply, this pump employs advanced impeller resistance technology to detect water presence without the need for a float switch. It automatically activates every 2-1/2 minutes for a brief check, and if water is detected, it continues pumping until the bilge is dry, then resumes sensing. This intelligent design ensures efficient operation while conserving power, making it ideal for boaters seeking a dependable, low-maintenance bilge pump.

Constructed with a stainless-steel shaft and a high-efficiency, low-amp motor, the Rule 25SA delivers consistent performance under demanding conditions. It is fully submersible and ignition protected, providing peace of mind in marine applications. The pump includes a check valve with a hidden air vent to prevent airlocking, ensuring smooth operation and ease of installation. Additionally, a built-in thermal cell safeguards the pump and vessel from overheating, extending the lifespan of the device. Its compact size makes it one of the smallest automatic bilge pumps available, ideal for spaces where space is limited.

The Rule 25SA features a manually override option for added control, and it comes with a backflow preventer to ensure water does not return into the bilge. Its efficient design and robust features make it suitable for various boat sizes and settings, providing reliable, maintenance-free operation. Note: This product contains chemicals such as 1,3-Butadiene, which the State of California recognizes as a potential risk; please see P65Warnings.ca.gov for detailed information.

Features:

• Completely automatic operation with manual override—no float switch needed

• Submersible and ignition protected for marine safety

• High efficiency, low amp motor for energy savings

• Stainless-steel shaft for durability and corrosion resistance

• Includes check valve with hidden air vent to prevent airlocking

Truck Freight: No
Oversized: No