HQRP Filter 4-Pack for Eureka Surface Max 200 2977AV Upright, SurfaceMax 300 2976AVZ Vac Vacuum Cleaner Coaster HQRP&reg; Four Filters plus HQRP&reg; Coaster; This glass fiber paper filter is H13 filtration class and retains 99.99% of particles down to 0.3 micron; Compatible with Original filter; 2 weeks DOA replacement warranty!