HQRP Filter Kit for Bissell Lift-Off Revolution Pet 4220, 42209, 4220P, 6595, 6595P, 6850, 6860H, 6860X, Velocity 75B21 Vac Vacuum Cleaner + HQRP Coaster HQRP&reg; Two Style 8 Post-Motor Filters and Upper Tank & Pre-Motor Filter Set + HQRP&reg; Coaster; HQRP filters are washable and reusable! Compatible with Original filters; 2 weeks DOA replacement warranty!