Specifically designed for waterfalls, pond filtration and pondless waterfall systems. Place pump in at least 1 of water and connect to waterfall. Intigrated float protects pump from running dry. Magnetic drive moter provides high flow rates at low consumption costs. Size is Large. Dimensions are 0.63 X 0.63 X 1.06 Plastic, Electronics With Magnectic Driven Motor. UPC Code = 015561203609