Specifically designed for S50 T7 Sweeping robot, ensuring exact fit and seamless integration without affecting original functions Easy to disassemble and replace without tools, water tanks can always maintain the best working condition PP cotton with microporous structure effectively water impurities, limescale and tiny particles to clogging and ensures even water distribution The replacement of the water tanks filter can filter out impurities such as mud and sand that are not visible in the tap water, effectively the overflows of water The evenly distributed water cores more impurities and makes the floor cleaner, and can keep your vacuum running at tip top