NaturalAire Standard 20X20X1 HVAC Furnace Pleated Air Filter 84858.012020, 12 Pack MERV 8, Durable High-Airflow Desgin, Traps Harmful Household Airborne Particles, Lint, Dust, Debris, 90-Day Use

JUST YOUR SIZE: Built for a dependable, accurate fit in most residential HVAC systems, this NaturalAire Standard filter features a nominal size of 20" X 20" X 1" and an actual size of 19 3/4" X 19 3/4" X 3/4", ensuring proper installation and optimal airflow performance. | MORE EFFECTIVE PROTECTION: The NaturalAire Standard filter is 6 times more effective than traditional fiberglass air filters at capturing dust, pollen, and other particles from your indoor air, helping maintain cleaner airflow throughout your home. | BETTER AIR FLOW: This furnace and air filter has been designed to trap small airborne particles while not restricting the flow air through your system. Because air will flow easily through your system, it uses less energy which saves you money! | MERV 8 RATING: The performance of this air filter is measured by the Minimum Efficiency Reporting Value (MERV). Higher MERV rated air filters trap more of the smallest airborne particles. The NaturalAire Standard reduces up to 75% of large airborne particles including: Dust and Lint, Dust Mite Debris, Pollen, Pet Dander, Mold Spores, Bacteria, Virus Carriers, and Odor. | CHANGE EVERY 90 DAYS: As an air filter remains in a system it has the potential to restrict the flow of air. We recommend changing this air filter every 90 days or sooner if needed. One carton contains 12 filters, so that's three year's worth under normal conditions!