This 6-pack of 3M Filtrete 14" x 25" x 1" Ultra Allergen filters, 3M Filtrete part #2004 or #2004DC-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 14" x 25" x 1" #2004 filter will capture dust particles as well as capturing smaller allergen particles like pollen, mold spores or bacteria. 3M Filtrete Product # 2004 or 2004DC-6 3M Filtrete Case UPC # 00051111556337 3M Filtrete Stock # 70071410818 To see a complete selection of genuine 3M Filtrete filter options, click here: 3M Filtrete Filters