Perfect Fit: DCV5011H HEPA filter compatible with for DCV501HB 20v cordless handheld vacuum.(Please check your model carefully) HEPA Filtration: DCV5011H filter is made of pleated filter paper, traps 99.97% of dust as small as 0.3 Micrometres; folding filter paper provides a larger surface area to improve airflow. Additional Foam Pre-Filter: DCV501HB filters have the foam ring gasket with excellent sealing, without dust leakage. Using with a foam pre-filter can keep big stuff from clogging filter. Easy Cleaning & Washable: Filter material can be washed and reused for better filtering of debris. Rinse with water and letting it air dry completely before reinstalling it for use. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:As Shown Material:Plastic Package Contents: 4 * DCV5011H HEPA Filter 8 * Foam Sleeve Filters 1 * Brush Only the above package content, other products are not included. 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.