Hv301 Filter : Shark Rocket Filters Replaces Part # Xffv300 And 1080Ftv320. | | Hv302 Filter Replacement Accessories : Includes 2 Foam Shark Rocket Filters ,2 Felt Filters And 2 Post-Filters. | | Hv301 Vacuum Filter Maintenance Advice : Replace The Filter Regularly Can Prolong The Vac Lifespan And Keep Efficient Filtration. | | Hv302 Foam Felt Filter After-Sales : If You Encounter Any Problem In The Process Of Using The Product, Please