This fully submersible 1500 gallon-per-hour 12V Rule bilge pump has a water cooled lubricated ball bearing motor. Rule submersible pumps are installed by many boat manufacturers because they offer good performance at a great price.
Their pump motors feature stainless steel shafts, water-cooling and a vibration-free centrifugal impeller that won't burn out if it runs dry. Each requires a panel switch for manual operation or a float switch for automatic operation.
