4 Pack Shark Replacement Washable Microfiber cleaning pad for Shark Dust-away, Rotator, Navigator Lift-away Pro Vacuum, Ultra Light Stick Vacuum Cleaner - Part # P200W It is washable, reusable. We suggest you change your filters every 3 to 6 months for optimal performance of your Shark vacuum. Please note:This is not a Shark? OEM product. The Shark? brand names and logos are the registered trademarks of their respective owners. Any use of the Shark? brand name or model designations for this product are made solely for purposes of demonstrating compatibility.