Description_x005F_x000D__x005F_x000D_The item is a professional and practical gravel cleaner, which is featured by its high flow, high efficiency in completing the water changing without using mouth. It is specially designed for normal water changing, and the simultaneous separation of gravel and crushed stone._x005F_x000D__x005F_x000D_Features_x005F_x000D__x005F_x000D_- Color: as shown in the pictures._x005F_x000D_- Material: durable hard plastic._x005F_x000D_- Pipe length: about 6 feet /2m._x005F_x000D_- Inner diameter: about 0.47-inch /1.2cm._x005F_x000D_- and Aquarium Fish Tank Gravel Cleaner Water Changer._x005F_x000D_- Convenient to change water._x005F_x000D_- Clean, healthy and environment friendly._x005F_x000D_- High flow, high efficiency to complete changing the water without using mouth._x005F_x000D_- Durable valve, without electricity._x005F_x000D_- Specially designed for normal water changing, the simultaneous separation of gravel and crushed stone._x005F_x000D_- Easy to operate and durable to use.Packing list1 * Portable Aquarium Fish Tank Gravel Cleaner Water Changer