HQRP 2-Pack Hepa Filter for Hoover WindTunnel Bagless; Dual V Bagless; Red Bagless Upright Vacuum Cleaner plus HQRP Coaster HQRP&reg; 2 Hepa Filters plus HQRP&reg; Coaster; This filter is HEPA filtration class H12 and retains 99.97% of particles down to 0.3 micron. 100% Compatible with Original filter; 2 weeks DOA replacement warranty!