Integrated pump and accumulator tank system. Compact design may be mounted vertically or horizontally. Can run dry without harm. FDA materials in pump and accumulator tank for drinking water. Self-priming up to 10 ft. Includes assorted ports for easy installation. Accumulator tank has total volume of 1.1 gallon Pressure shut off-40 psi. Size: 7.2" H x 11.3" W x 12.8" D. 4.5GPM/6GPM fully charged. 12 volt. 10 amp.