Kirby Allergen Reduction Vacuum Bags 2 per Pack # 205811, 205811A Vacuum Cleaner Bags, 2 / Pack Code # 205811A kirby Allergen Reduction Vacuum Cleaner Bags, 2 bags in pack Universal Style Disposable Bag 2 pk HEPA Filtration with Micron Allergen Technology fits both F-Style and Twist-style Kirby Models 49-2456-02