Hoover A Micro Allergen vacuum bag. Each package contains 3 vacuum bags with Mirco Allergen filtration that captures 94% of particles larger than 1 micron in size, including dust mite debris, grass, and ragweed pollen. Fits Hoover Concept One , Concept Two , Constellation , Commercial Lightweight, Commercial Guardsman , Decade 80 , Decade 800 , Elite , Encore , Futura , Innovation , Legacy , Preferred PowerMax, RS , Runabout , Soft & Light , Spectrum , Spirit , Sprint , Supremacy , Tempo, Top Fill Convertible , TurboPower 1500, 2000, 2200, 3000, 3200, 4000, 4200, and Widepath Preferred upright models. No. 64700A-6: Type: A, Filtration Type: Micro Allergen, For Use With: Hoover Concept 1, Concept 2, Constelatn, Pkg Qty: 3, Package Type: Hang Tag This item replaces product number 193941