Is your Shark vacuum not sucking like it used to? Time for some new filters! This CF Clean Fairy 4-pack gives you everything you need to get your vacuum running like new again. You get 4 premium foam filters, 4 ultra-thick felt filters with that cool textured surface, AND 4 post-filters - seriously, it's a complete refresh for your machine. These work with a ton of Shark Rocket models including HV320, HV320C, HV320W, HV321, HV322, HV322Q, HV324Q, HV325, HV319Q, UV330, UV422, and UV422CCO. They're direct replacements for Shark part numbers 1080FTV320 and 1084FTV320. Quick heads up though - they don't work with HV300, HV301, HV302, HV305, HV310, HV380, HV380W, or HV381 models, so double-check your model number before ordering. The general rule is to replace your vacuum filters every 3-6 months to maintain that powerful suction and keep your air clean. These are aftermarket parts made by Clean Fairy, which means you get the same quality as the original but for way less money. Installation is super easy - just pop out the old filters and put these in. Your vacuum will thank you with better performance and cleaner air in your home. Perfect for anyone who wants to maintain their Shark vacuum without paying those crazy original part prices!