Wash Frequently | Rinse and allow to air dry completely. Frequent replacement | It is recommended to replace the filter after 2-3 cleanings to ensure the performance and cleaning power of the vacuum cleaner. Included in the package: 4 filters, 1 cleaning brush. The Filter Compatible with | Shark WANDVAC POWER PET Cordless Hand Vac - Shark ??WV410CO, WV401BL, WV401PK, WV403BR, WV410BL, WV410GN, WV410PR, WV410TL, WV410CO, WV410WH, WV412CO, ??QV410QBK, QV410QBL, QV410QCP, QV410QGY, QV410QPL, QV410QMG, QV410QGR Vacuum. Manufactures names,number and illustrations are used for reference purposes only.