Replacement filter is only compatible with for Horsepower Duck Compact Cordless Vacuum Cleaner,(Please confirm your machine model number before purchase) [Value Pack]: You receive 4 vacuum cleaner replacement filters to replace worn out filters on your handheld vacuum. This ensures that you always have spare filters on hand for quick and seamless replacement. [Strong Filterability]: Our Highly Effective HEPA Filter can filter more than 99.97% of the hair, fine dust, sawdust, cold ash, wood chips, fine powder and other dust particles garbage [Maintenance]: We recommend to update the filter every 2-3 months according to the usage to maintain and prolong the working performance of the vacuum cleaner. Tip: Please disconnect the power supply of the vacuum cleaner before installation to your safety Type:Vacuum Cleaner Accessories Vacuum Part Type: Filters Color:Black & White Material:plastic Package Contents: 4 * Replacement Filter 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.