The Hoover HEPA Cartridge Filter 43611-042 Replacement Windtunnel Vacuum Cleaner is a white filter designed specifically for Hoover upright vacuum cleaners. It is compatible with the Windtunnel model and includes one filter in the pack. This genuine Hoover product ensures that your vacuum cleaner continues to function effectively, trapping allergens and particles to maintain clean air in your home. Ideal for maintaining the performance of your Hoover vacuum, this filter is a convenient and essential accessory for household cleaning.