3 Piece filter kit is designed to fit Shark Rocket models:

HV292 HV300 HV300C HV300W HV300WC HV301 HV301C HV302 HV302Q HV303 HV305 HV310 UV450 UV450CCO UV450CCOFS

Includes one foam pre-motor filter, one felt pre-motor filter, and one felt post-motor filter.