This 6-pack of 3M Filtrete 14" x 25" x 1" Ultimate Allergen filters, 3M Filtrete part #UA04 or #UA04DC-6, is the "best" choice in the Allergen reduction line of 3M Filtrete filters. The 3M Filtrete Ultimate 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 Ultimate Allergen 14" x 25" x 1" #UA04 filter will capture dust particles as well as capturing smaller allergen particles like pollen, mold spores or bacteria. 3M Filtrete Product # UA04 or UA04DC-6 3M Filtrete Case UPC # 50051111021397 3M Filtrete Stock # 70005027712 To see a complete selection of genuine 3M Filtrete filter options, click here: 3M Filtrete Filters