ZVac 4 Shark Rotator Lift Away HEPA Filter Generic Part Replaces Part Numbers EU-18525, XFH500 Fits: Shark Rotator Professional Lift-Away NV501, NV500CO, NV500 This is a 4 package of premium generic replacement HEPA Filter by ZVac. This replaces the original OEM Shark Rotator Lift Away HEPA Filter & replaces part numbers EU-18525, XFH500 Premium generic HEPA Filter fits these series of Shark vacuums: Shark Rotator Professional Lift-Away NV501, NV500CO, NV500 & other vacuums using Rotator Lift Away HEPA Filter Fits these models: Shark UV560 Rotator Professional Lift-Away Bagless Upright Vacuum, Shark Rotator Professional Lift-Away NV500CO, Shark Rotator Professional Lift-Away NV500, Shark Rotator Professional Lift-Away NV501, Factory Refurbished Shark Rotator Professional Lift-Away Vacuum NV500RE This is a premium generic product made by ZVac. This is not an OEM product and is not covered under any manufacturer's warranty. ZVac is not affiliated with the manufacturer