Electric Water Changer Siphon Pump Gravel Cleaner Filter for Fish Tank Aquarium Features: 1.The both side handle circle adopt ergonomic design, easy to operate. 2.Rotor, precise design, no wear, no need to wipe the oil. 3.The telescopic tube buckle is specially designed to hold the telescopic tube tightly and is not easy to fall. 4.The suction head is connected to the pipe and has a sand filter head, can be used together or removed. The suction head facilitates the removal of dirt from the corner of the fish tank. 5.Water-suction catheter, two different lengths of catheter, 15CM and 40CM, can be selected according to needs. 6.Washing the sand: Wash the sand double nozzle, remove the large gravel that does not need to be removed, and prevent the large gravel from blocking the rotor of the motor. 7.Change the water: Connect the change water hose, put the electric sand washer into the water, change the water, please pay attention to the water level warning line. Specifications: Item type: Fish Tank Electric Water Changer Material: ABS Color: As picture shown Battery: 2 x No.2 battery(not included) One section total length: Approx. 56cm/22in Two section total length: Approx. 67cm/26.3in Three section total length: Approx. 82cm/32.3in Effect: can change the water, wash the sand, and also remove the dirty things from the water to the aquarium, fish tank. Packing List: 1 x Fish Tank Electric Water Changer 1 x Hose 1 x Wash sand mesh bag Note:  After loading the battery, leave it for 3-5 seconds for use; or use AC directly.