25SA-24 - Rule 500GPH Electronic Sensing Bilge Pump - 24V

• 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

• 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 500GPH Electronic Sensing Bilge Pump, part number 25SA-24, is a 24V submersible pump designed for automatic water removal. This unit operates using an impeller resistance sensing mechanism, eliminating the need for a separate float switch. It activates every 2.5 minutes for approximately one second to detect water. If resistance is sensed, the pump continues to run until the water is cleared, then reverts to its sensing cycle. This method helps conserve power by only running when water is present.

Key features include a built-in thermal cell for overheat protection, true electromagnetic suppression (EMC), and a hidden air vent within the included check valve to prevent airlocking. The pump also offers a manual override function, is ignition protected, and utilizes a high-efficiency, low-amp motor with a stainless-steel shaft. It is suitable for applications requiring consistent water level management between 1/8" and 3/8" with minimal power draw.