Designed for boats with multiple fixtures, these pumps provide “Just like homex9D shower pressure, yet can operate at low flow conditions without cycling. A built-in mechanical bypass function enables the pump to vary the flow rate for any demand condition, without the need for an accumulator tank. Motors are heavy-duty, with electro-coated seamless shell, O-ring sealed end bells, and fully sealed wire entries on the motor shell and pressure switch. Inlet strainer and 1/2" hose barb fittings are included. Pumps are ignition protected, thermally protected and can run dry without damage Switch Type: 55psi Self-Prime: 6' Material: Polypropylene pump head, EPDM valves, Santoprene diaphragm Port Sizes: 1/2"MNPT Dimensions: 10-3/4"L x 4-7/8"W x 4-13/16"H GPM: 4 Volts: 24 Draw: 5A@ 24V DC Warranty: Three years