HQRP 2-Pack H12 Circular Filter Set for Bissell 23T7L, 23T7M, 23T7N, 23T7R PowerForce Compact Vacuum Cleaner Plus Coaster HQRP&reg; 2-Pack Filter Assembly Replacement (1 Inner & 1 Outer Filter) 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!