1.Improve the cleaning effect: Replacing the water tank of the sweeping robot can stabilize the water supply and ensure that the mop is evenly moistened, which can improve the cleaning effect. 2.Prevent water leakage: The old water tank has been used for a long time, resulting in aging or cracks in the seal, which can lead to water leakage problems. Replacing the robot vacuum cleaner's water tank can reduce water leakage and damage to wooden floors, carpets or furniture, and also reduce water seeping into the machine and causing short circuits in the circuit. 3.Extend the life of the robot vacuum: Replacing the robot vacuum cleaner's tank can reduce the burden on the machine, thereby extending the overall life. 4.Maintain the performance of the equipment: Replacing the robot vacuum cleaner tank can keep the equipment in a better condition and avoid performance degradation caused by tank problems. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.