XFF450 Rotator Professional NV450 OEM Foam and Felt Filter Kit, Includes 1 Washable Foam, 1 Felt Filter, Part XFF450, Shark XFF450 Foam and Felt Filter Kit for Shark.., By Shark,USA - Walmart.com
Amazon.com: JJSS Filters for Shark Vacuum Filter Replacement Lift-Away 500 Series NV500 NV501 NV502 NV503 NV505 NV510 NV520 NV552 NV640 NV642 UV560 Xff500 HEPA Filter & Foam Compatible with Shark Vacuum Parts :