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…