of 3M Filtrete 20" x 25" x 1" Dust Reduction filters, 3M Filtrete part #303 or #303DC-6, is the "economy" choice in the broad line of 3M Filtrete filters. The 3M Filtrete Dust Reduction Filter is a good choice if you need a very basic filter to capture large airborne particles regardless of your furnace brand. The 3M Filtrete Dust Reduction 20" x 25" x 1" #303 filter will capture dust particles but is not suited for capturing smaller allergen particles like pollen or mold spores.
3M Filtrete Product # 303 or 303DC-6
3M Filtrete Case UPC # 50051111020710
3M Filtrete Stock # 70071426723
To see a complete selection of genuine 3M Filtrete filter options, click here: 3M Filtrete Filters
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