HQRP 4-Pack Inner & Outer Circular Filter Set for Bissell PowerForce 23T7V 23T75 23T76 23T78 23T7L 23T7M 23T7N 23T7R Vac Vacuum Cleaner Upright Power-Force Power Force Coaster HQRP&reg; 4-pack Filter Set plus HQRP&reg; Coaster; This PP compound filter is H12 filtration class and retains 99.95% of particles down to 0.3 micron; HQRP filters are washable and reusable! Compatible with Original filter; 2 weeks DOA replacement warranty!