Upgrade your indoor air quality with 20x20x4 Merv 11 air filters from Merv Filters LLC. For years, we have been providing highly-efficient and superior quality air filters to people who need to maintain a clean and healthy home or office environment. Our 20x20x4 Merv 11 filters are capable of capturing and removing 65% to 79% airborne particles of 1.0 to 3.0 microns and more than 85% airborne particles of 3.0 to 10.0 microns.
Our 20x20x4 Merv 11 furnace filters are electrostatically charged, 100% synthetic media made to ensure they trap all small and tiny particles and allergens in the air. However, they can effectively filter dust, pet dander, mold spores, bacteria, and more to let you and your family enjoy clean and healthy air.
Merv Filters LLC delivers 20x20x4 Merv 11 filters that are resistant to moisture and various chemicals while balancing a low-pressure drop. We suggest you replace your air and furnace filters every 3 months to extend the life of your heating and cooling system.
Important Note: Our air and furnace filters come in nominal size which is slightly larger than the actual size. Like, when you order for a 20x20x4 MERV 11 filter, it will come in 19.5X19.5X3.75 size. For any query, you can call us 800-819-0297 or contact our friendly customer support team.