Sweeping water tank - It integrates the water tank and the dust collection box, which can be used with a wrench to easily realize double cleaning of sweeping and wiping, so that the home environment is completely new. Dust collection box: large water tank and dust collection box, reduce the amount of frequent water or dust, and complete the large-area cleaning at once, save time and worries. 2-in-1 water tank dust box: Our 2-in-1 water tank dust box is designed to improve efficiency, both as a high capacity dust box for robot vacuum cleaners and as an efficient wiping water tank. Water storage tank: the built-in water tank ensures that the water is evenly and accurately distributed when wiping, prevents the floor from getting too wet, and improves overall cleaning efficiency. Dust Bucket Topaz SV Electric Controlled Water Tank Parts Compatible with Roborock, S7 MAXV S7 MAXV Plus S7 MAXV Ultra S7 PRO Ultra Cleaner