Replacement Filters Compatible with Kenmore Bagless Upright Vacuum Lightweight Carpet Cleaner, Fits Models: DU1275 DU1040 DU1099 KU1010 Replacement Filters Includes : 4 foam filter,4 felt filter. Vacuum Filter should be replaced every 3-6 months for optimum performance. Premium Quality - Made of high quality materials, easy to clean and reusable. If you meet the product is not suitable, you can contact us, we provide after-sales service, reply you within 24 hours, thank you! Vacuum Filters Compatible with Kenmore Bagless Upright Vacuum Lightweight Carpet Cleaner.