<p>Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you!</p> <p>[Compatible Model]This product is fully compatible with for Clean Cordless Cleaner models including BU3523, BU3521, BU3120. Please confirm that your machine model matches one of our compatible products before purchasing</p> <p>[Washable \u0026 Reusable]Maximize cost-efficiency by rinsing our filters thoroughly with clean water, allowing them to dry thoroughly, and reusing them. For , we recommend replacing the filter set every 2-3 months to help extend the lifespan of your vacuum cleaner</p> <p>[Easy Replacement \u0026 Installation] No tools required for filter replacement. Simply remove and replace the filters from your vacuum cleaner equipment when needed. Quick and convenient, making your cleaning tasks smoother.</p> <p>Colour:Photo Color</p> <p>Material:plastic</p> <p>Package Contents:</p> <p>3 x filter</p> <p>3 x filter element</p> <p>3 set x filter cotton</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>