I've been using my two Shark vacuums for about 1-2 years and nothing beats these vacuums. I bought this set to fit my only vacuum and my original filters finally needed replacing. I've washed them many times and they're still like new, but I figured it was about time I probably bought a new set of filters and I'd give these a try. They fit well, however, the flat part is too thick and the foam part is too hard/thick, preventing the cleaner from working at full suction. My vacuum only picks up about 1/3 of what it normally picks up with the original "shark" filters that came with my vacuum. You can have them on hand in case of an emergency, but they don't do the job. So I stick with the original Shark filters and spend a few euros more.