I bought a replacement filter for my Eureka vacuum and the gasket around the plastic frame is the wrong size. It is not as tight as the original filter. Luckily there were two packs. The second filter fits with just a little pressure. I will keep and modify the first filter (pictures attached) so it's not a waste of money. At around $6.80 per filter, it would be hopeless to pay shipping to return it. It works, but don't expect it to be perfect. My filters really don't fit perfectly.