Replacement vacuum cleaner filter. Filtrete vacuum filters help capture dust mites, grass, and ragweed pollen. Compatible with Bissell CleanView (3575, 3590, 8975, and 8990 series), CleanView Power Trak (3591, 3593, 3594, and 6590 series), CleanView Revolution (3595 and 3596 series), Lift-Off (3750, 6595, and 6801 series), Lift-Off Revolution (3760, 6850, and 6860 series), Pet hair Eraser (3920 series), Power Trak Revolution (6591 series), Total Floors Velocity (3990 and 6393 series), and Velocity (3950 series). Package contains 1 filter set (2 different filters).