Eureka Dust Cup Filter For Bagless Upright Vacuum Cleaner, DCF-18 Eliminates odors associated with mold, mildew and bacteria. Fits Eureka 4700 and 5500 series upright vacuum cleaners. Contains Arm & Hammer baking soda. For HEPA air filtration system. OEM/Compatible: OEM. Contains Arm & Hammer baking soda.Eureka