HQRP 2-pack Foam Felt Filter Kit; | | Replacement for Shark part XFF450; Includes 2 Foam 2 Felt Pre-motor Filters; | | Compatible with Shark Rotator NV450, compatible with Shark Rocket NV480 and compatible with Shark DuoClean QU201, QU202, QU203 series Cleaners; | | Washable and Reusable; Rinse and air dry every month under normal use; | | Replace filters every 6 months for best results; 2 weeks DOA replacement ! | |