Dyson DC33 Vacuum Filter Kit Pre Filter (919563-02) and Post-Motor HEPA Filter (921616-01) Washable & Reusable - Walmart.com
Amazon.com: Anicell 2 Pack Pre-Motor Filter & Post-Motor Exhaust HEPA Filter Replacement for Dyson DC33 Multi Floor, DC33 Total Clean, and DC33 Exclusive Vacuum Cleaners, Replace Part # 919563-02 & 921616-01 :
Amazon.com: Anicell for Dyson DC33 Animal, DC33 All Floor Replacement Bundle Filter Kit, 1 DC33 Washable Dust Cup Primary Filter, 1 DC 33 Post Motor HEPA Exhaust Filter, Generic for 919563-02 921616-01 : Home & Kitchen