I needed another set of filters for my Shark vacuum and found this. They work great! They fit my vacuum cleaner perfectly. I now have 2 brand new sets of filters and an old set that allows me to vacuum and clean non-stop (remove dust then rinse clean then wait for them to dry which takes at least 8 hours on average). our humid climate). Clean filters are key to maximizing shark suction power, so having backups really helps! I am completely satisfied with my purchase and will return for more when I need them :)