I've been using Roomba for years and these filters fit my current robots. I have one, model #890, and the other uses the same filters, but it's an older robot that I've upgraded the bins to be the same as the newer ones. I like to change these filters often because it helps with vacuuming. better. I've noticed lately that some of these don't have a light grid on the accordion filter, but they do have a grid, which is a plus. The mesh on the top allows you to vacuum the filter with a vacuum cleaner and the filter will last longer. Filters without this screen will need to be changed more frequently because you cannot remove large debris from the harmonica folds. They fit snugly and snugly in the filter compartment, which is good because then the vacuum doesn't allow air to flow around the filter. I like that it had a large number of filters and the price was good. Excellent price and quality! Thank you for reading my review, Becky Brooks.