HQRP Foam and Felt Filter Kit for Shark XFF80, Navigator NV80 / NV80 26, NV70, NV90, UV420 /UV420 26 Upright Vac Vacuum Cleaner Coaster HQRP&reg; Foam and Felt Pre-Motor Filter Kit Replacement plus HQRP&reg; Coaster; These filters are located exactly below the dust cup and protect the motor from any debris going into it; Do not operate the vacuum with wet filters; Washable and Reusable; Compatible with Original filter; 2 weeks DOA replacement warranty!