Boat electric water pump (freshwater)
EXTREME SMART SENSOR 4.0 (12V-24V/15.1LPM) Shurflo

The Smart Sensor™ 4.0 is designed specifically for cruisers and midsize yachts. Delivering 4.0 GPM and pressure up to 50 PSI, this micro-controller based variable speed pump precisely monitors your system's water pressure and adjusts the motor speed, eliminating the need for a pressure switch.

SHURflo engineered the Smart Sensor™ 4.0 with a superior four-chamber design that incorporates large inlet and outlet passages to maximize water flow and efficiency, providing a "Just Like Home" shower and quiet operation.