LTWHOME Washable Replacement Hepa Filter Fit for Dyson DC25 Pre Motor Vacuum Cleaner,Compare to Part 919171-02(Pack of 4) Package Include: 4pc pre motor filter. Replaces OEM#: 919171-02. Fits Dyson DC25 Animal, DC25 Multi Floor, DC25 Blueprint. Washable and Reusable. Change every 3 to 6 months.