JABSCO 5 GPM Par-Max HD5 Freshwater Pump Heavy-duty, coated motors paired with cast-aluminum endbells and lower housing provide years of satisfaction. The ParMax HD5 freshwater pump is designed to service installations with up to four outlets. Configured with an on-demand pressure switch (set at 60 PSI), the unit will automatically turn on when a faucet is opened and off once shut. the enclosed motor helps protect against water intrusion and the co-molded diaphragm allows for long-life. An integrated bypass valve helps smooth flow and reduce switch cycling. Other features include quick connect port fittings for ease of service, maintenance, and winterization; rubber mounting feet are included to reduce noise and vibration. Features: