Applicable model: Replacement filter element compatible with DeWalt DCV580 and DCV581H wet/dry vacuum cleaners, replace # DeWalt DCV5801H. Spare parts are manufactured in pleated filter paper high quality washable and have been well tested by the manufacturer. The filter cartridge can be cleaned and reused and can be cleaned easily. The efficiency collecting quality filters HEPA reaches 99.97% and the dust is as small as 0.3 microns. It purifies indoor air, prevents it from being polluted. and prevents secondary pollution. It is recommended to replace the spare parts every 3 to 4 years. 6 months depending on the frequency of use for the machine to operate at its best. Used; to clean the dirt such as sawdust, wood chips, construction waste and dirt. cars or trucks. Package contents: 2 filter elements