High efficiency allergen vacuum filters. The media in these filters help trap 99.97% of all airborne pollutants 0.3 microns or larger, including mold spores, pet dander, grass, ragweed pollen, and other microscopic allergens. Fits models: Eureka 2270 series; Contour Maxima and Powerline (2900 to 2920 series); EZ Kleen, SurfaceMax, 200 and 300 (2940, 2960, 2970 series) and select Whirlwind, Whirlwind Plus, Pet Lover, Pet Expert and Clean Living (3270 and 3280 series) uprights. No. 67807B-4: Size: 3.5" L x 1.5" W x 7.9" H, Type: HF7 High Efficiency, Filter Efficiency: 0.3 micron, For Use With: Eureka 2270,2900, and 3270 Series, Pkg Qty: 1, Package Type: Clamshell Thanks for shopping Hipp Hardware Plus's Online Store for all your DIY and Home Improvement needs. Remember Hipps Help!