Robot Vacuum Water Tank：The water from the water tank is evenly discharged, and with the help of a vacuum cleaner brush head, cleaning is more thorough. Wet Dry Vacuum Water Tank：Adopting a double-layer sealing ring and snap on fixed structure, there is no water leakage during tilting and moving, avoiding secondary cleaning. Vacuum Mop Water Tank：Transparent water level scale design, the remaining water level is clear at a glance, and timely replenishment does not delay the cleaning progress. Replacement Water Tank for Vacuum：When used with a vacuum cleaner, it can clean floors made of various materials such as wood, tiles, marble, etc. without damaging the floor.  Compatible for Ecovacs，T30S/T30Pro，replacement mop pads