Introducing the Rule-Mate 1500 and 2000 GPH bilge pumps, the ultimate solution for maintaining a dry bilge easily and efficiently. Designed for seamless operation, these automatic bilge pumps that do not include manual override switch are equipped with integrated water level sensor, ideal for boat owners seeking reliable performance. When water levels reach 2-3/4" (70mm), these pumps activate, shutting off automatically at 5/8" (16mm) to ensure optimal efficiency while preserving battery life. In scenarios where debris might disrupt operations, the backup mode activates, enabling the pump to cycle every 2.5 minutes, providing dependable protection and functionality on the water. Experience peace of mind with this automatic bilge pump, featuring eco-friendly "field effect" technology that distinguishes water from oil, preventing false starts. The built-in thermal cut-off offers safety and longevity, making this pump ideal choice for boaters requiring high-capacity pumping power. The threaded discharge simplifies installation, the robust design ensures stable performance even in challenging conditions. Whether using this 12V pump or its 24V counterpart, you can trust these submersible pumps to deliver excellence and reliability, perfect for boats of all sizes. Elevate your maritime experience with unparalleled pumping capabilities that keep your vessel dry and ready for adventures.