Foam Filter kit for Shark Rotator Pro Lift-Away NV500, Compare to Part # XFF500 By Vacuum Savings Designed to fit Shark NV500 Models Brand New Individually Sealed Compare to Part # XFF500 Designed & Engineered By LifeSupplyUSA Helps effectively filter airborne irritants such as smoke, pollen, dust, mold spores, pet dander and fabric fibers