Compatible With Shark Detect Pro Lightweight Cordless Vacuum Cleaner Iw3511, Iw3120, Iw3511Amz, Iw3615, Iw3110C, Iw3111C, Iw3120C. | | Attention!!! Not Fit Shark Vacuum Uv850, Uv950, Zu60, Zu62, Zu151 Series. Please Make Sure Your Machine Number Or Part Number Before Purchase! | | Package Comes With 4 Foam 4 Felt Detect Pro Replacement Filters. | | Washable Reusable, Just Rinse The Filters In Water And Let It Dry By Natural. Easy To Install And Replace. Filters Kit Compatible With Shark Model # Xaffiw1000. | | Effectively Improve The Cleaning Performance And The Powerful Suction Of Your Vacuum. Recommend Replace The Filter Every 2-4 Weeks Depend Using Situation. | | Please Feel Free