HQRP 2-pack Washable & Reusable FloorMate Filters for Hoover 59177051 Replacement for Hard Floor Cleaner Upright plus Coaster HQRP&reg; 2pcs Washable & Reusable FloorMate Filters plus HQRP&reg; Coaster; HQRP filters are washable and reusable! (unlike other filters); This filter is semi HEPA and retains 95% of particles down to 0.4 micron. Dimensions: 4.25" x 1" x 3.13" 100% Compatible with Original filter; Change every 3 to 6 months. 2 weeks DOA replacement warranty!