The spare parts fit the roborock S5 Max. The only thing I haven't changed yet is the water filter, but I don't think there will be a problem (if there is, I will come back). What I liked is that the rectangular part of the filter has a thin material like a tulle that prevents dust and hair from entering the filter because after each cleaning, I would spend a lot of time cleaning it with a brush. I have a dog and it collects a lot of hair and dust with each sweep