HQRP Inner/Outer Circular Filter for Bissell Easy Vac 23T7; 23T74, 23T77, 23T7E, 23T7F, 23T7G Vacuum Cleaner Plus Coaster HQRP&reg; 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!