This 6-pack of 3M Filtrete 25" x 25" x 1" Ultra Allergen filters, 3M Filtrete part #2015 or #2015DC-6, is the "better" choice in the Allergen reduction line of 3M Filtrete filters. The 3M Filtrete Ultra Allergen Filter is a better choice if you need a filter to capture large airborne particles as well as microscopic allergens regardless of your furnace brand. The 3M Filtrete Ultra Allergen 25" x 25" x 1" #2015 filter will capture dust particles as well as capturing smaller allergen particles like pollen, mold spores or bacteria. 3M Filtrete Product # 2015 or 2015DC-6 3M Filtrete Case UPC # 00051111556368 3M Filtrete Stock # 70071411469 To see a complete selection of genuine 3M Filtrete filter options, click here: 3M Filtrete Filters