20x20x4 Air Filter for A/C or Furnace.
Actual Size: 19-1/2 x 19-1/2 x 3-3/4.
Filter Rating: MERV 11 | FPR 7 | MPR 1000.
20x20x4 MERV 11 filters for your air conditioner or furnace are built to promote better airflow throughout your home or business, while significantly reducing some of the more harmful airborne contaminants. Removing these airborne particles can help improve allergies and alleviate sinus irritation that can cause coughing, sneezing, and other ailments. Aside from the health advantages, these MERV 11 HVAC filters, if changed within the recommended 90-day time frame, will also extend the life of your heating and cooling system by still allowing it to work more efficiently.
MERV 11 Specifications:
• Manufactured for system applications requiring high efficiency, non-shedding filtration media.
• Effectively reduces pollen, dust, pet dander, mold spores, dust mites, bacteria, smoke, smog and other allergens from the air in your home or business.
• Super charged, electrostatically enhanced media.
• Specifically manufactured for system applications requiring improved medium efficiency, non-shedding filtration media.
• MERV 11 (Minimum Efficiency Reporting Value) based on ASHRAE Test Standard 52.2-2012
• Synthetic media made up of continuous hydrophobic fibers which do not absorb moisture and can withstand turbulent, high velocity conditions.
• Manufactured for system applications requiring high efficiency, non-shedding filtration media.
• Effective in single filter applications or as improved pre-filter substitutes for disposables, permanent metal filters or media pad/frame filters.
• Enhanced overall particle size efficiency due to continuous fiber structure and dual-stage electrostatic enhancement which captures an increased amount of smaller particulate than conventional glass media.
• 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
We have a 100% customer satisfaction policy. If you are not satisfied with your purchase for any reason, just notify us through your account returns area, or email support. We will send you a Free shipping return label and provide your choice of a refund or product replacement. You have 180 days to return an item. Our goal is to always make your life a little easier.
