The Seachem Impulse 400 is an amazingly versatile multi-function pump designed for use in a wide variety of freshwater and saltwater applications such as protein skimmers, sumps, indoor fountains, outdoor ponds, water-cooling and many more. The unit boasts a state of the art synchronous motor equipped with a wear resistant, self cleaning stainless steel impeller as well as a ceramic shaft and bearings to greatly improve the function and longevity of the pump itself. To touch more on the versatility of the Impulse pump, the unit has the ability to be used for both wet or submerged function in addition to dry or inline processes to provide unmatched functionality for aquarium owners of every type. Easily adjustable flow rates offer greater control over the various functions of your aquarium equipment. The pump features a flow rate of 400 GPH, has a maximum head height of 6 feet and is incredibly energy efficient at only 23 watts. Multi size hose adaptors and suction cups are included with the pump.