This was sold as replacement parts for Roborock Qrevo Pro - the Hepa filter does not fit, and this portion of the purchase was a waste of money. I needed the roller and brushes, so not returning item. Walmart - start checking on your resellers that you are sourcing, this is the SECOND time in the past few months where the item from a China source was totally inaccurate and useless - last time was seed pods with no seeds even though advertised as such. No more purchasing from Biberol or whatever the seller name is. Caution required.