HQRP 2-Pack H12 Filters/Circular Filter Set for Bissell Rewind Premier Pet 67F8, 44M3, 44M3P, 44M3R, 67F82 Vacuum Coaster HQRP&reg; 2 Filters plus HQRP&reg; Coaster; This PP compound filter is H12 filtration class and retains 99.97% of particles down to 0.3 micron. Dimensions: up diameter: 3.73"; down diameter: 3.37"; height: 2.62" 100% Compatible with Original filter; 2 weeks DOA replacement warranty!