Foam filters do not fit properly although I bought the type listed for my vacuum cleaner model. We have a good 1/2 to 3/4 inch clearance between the filter and the chamber walls. It should fit snugly. Also, the quality of the foam is nowhere near as good as the original filters, and while the originals were solid circles, they are cylinders with a hole in the middle. While the price was right, the part was wrong. It's not worth it