20x25x1 11 Pleated Furnace Air Filters. 6 Pack. Made in .

Actual Size: 19-1/2 x 24-1/2 x 3/4. Filter Rating: 11, 7, 1000. 11 Specifications: Effectively reduces pollen, dust, pet dander, mold spores, dust mites, bacteria, smoke, smog, and other allergens from the air in your home or business. Supercharged electrostatically enhanced media. Specifically manufactured for system applications requiring improved medium efficiency, non-shedding filtration media. 11 (Minimum Efficiency Reporting Value) based on Test Standard 52.2-2012 Pleat configuration: Formed into aerodynamic, semi-tapered, wedge-shaped pleats expanding its capability to capture contaminants. Suggested to change at least every 3 Months Made in the United States