Features:1. Multi-functional: sand washer, water changer, filter and suction fish waste. It will meet various needs of the user. 2. Electric aquarium sand washer: free to change water, no plug require, no distance restrain. 3. Ergonomic design: the rings on handle side are comfortable and convenient to operate. 4. Telescopic structure, according to the size of the fish tank, can freely adjust the length of the water changer, convenient and practical. And the special buckle will firmly stuck and not easily fall off. 5. Simple Operation: press the power switch, so you can move it to anywhere you need, easy to suck up fish waste and fish tank filth. As a water exchanger for suction the dirty water. Specification:Condition:100% NewMaterial: ABSColor: As Pictures ShownBattery: 2 * C Batteries(Not Included)Flow rate: 520L/ hAssembly Size: Shortest: 41.5cm/16.3in longest: 83.5cm/32.9inWater Changing Tube Length: approx.75cm/29.5inWeight: Approx.288g Suitable Water Level: the lowest water level(single sand filter head) is 11cmthe highest water level is 62cm. Package list: 1 * Motor3 * Telescopic Tubes1 * Mesh Bag Connector 1 * Filter Mesh Bag1 * Connector 1 * Sand Filter Head 1 * Sand Washer Cup 1 * Siphon Note: 1. After finished installation of the sand washer and about to change water, be sure to keep the water surface between the highest water level and the lowest water level before starting the switch. When the water outlet can be drawn out, the sand washer can be raised, the head and the water outlet will be out of the water.2. The idle running time of machine out of water should not more than one minute.3. Battery improvisation should be installed in accordance with the instructions, can not be installed backwards.4. After each time sand washing, the filter bag should be cleaned in time.