Generous 3.5 gallon per minute designed specifically for boats. Pump has a built in bypass to reduce on/off pulsation at lower flows. Water system pumps are used to deliver water from a boats water tank to the faucets in the system. Our quick connect fitting feature allows for easy installation which is key when installing the pump in tight quarters. Jabsco pumps are the preffered brand by many recreational boaters. It is the leading brand used by boat builders worldwide.