Applicable Models:DCV581H Vacuum Main Filter is suitable for Dewalt DCV580H DCV581H DCV5801H 20V Wet/Dry Vacuum Cleaners, 4 Pack. High Efficiency Filtration: 3-in-1 True High Efficiency System High Efficiency Filter. It can capture 99.97% of air particles as small as 0.3 microns to attach, protecting your home from pet hair, pet dander and odors. Easy to Install:No tools are required when needed, just remove and replace the DCV580H/DCV581H/DCV5801H replacement filter from the machine unit. Regular Replacement:We use advanced low energy consumption and lower density structure technology, higher efficiency and less pressure to ensure maximum filtration. These accessories are sturdy and can be used many times. The compatibility and working principle are the same as the original products. Keep the robot running at optimal performance. It is recommended to replace it every 2-4 months. Colour:As Shown Material:plastic Package Contents: 4 * Filters 1 * Cleaning 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.