Rule Industries 500 GPH Automatic Bilge Pump Advanced Performance for a Cleaner Bilge Keep your bilge in top shape with the Rule Industries 500 GPH Automatic Bilge Pump, designed for superior performance and reliability. This cutting-edge pump is engineered to efficiently handle nuisance water, ensuring your bilge remains clear and dry, thanks to Rule s renowned design expertise. Why Choose the Rule Industries 500 GPH Automatic Bilge Pump? Smart Auto-Sense Technology: Featuring an advanced internal level sensor, this pump automatically activates when water levels reach 2" (5cm) and shuts off at 3/8" (0.9cm). This means less manual intervention and more time enjoying your time on the water. Enhanced Flow and Efficiency: With an optimized impeller, this pump delivers up to 10% more flow at the same amperage, ensuring powerful and efficient water removal. Backup Protection: RuleMate s innovative backup feature prevents the pump from running continuously if the sensor is fouled or contaminated. It reverts to a 2.5-minute cycle mode to protect your battery while maintaining reliable operation. Compact and Robust Design: The new RuleMate model is 2/3 the size of its predecessor, making it ideal for tight spaces without compromising performance. Durability and Safety: Built-in thermal cut-off (TCO) provides additional protection for both the pump and your vessel, while backflow prevention reduces residual water, minimizing odors and keeping your bilge cleaner. Advanced Features: