18x20x1 MERV 11 Pleated AC Furnace Air Filter. Case of 12

18x20x1 Air Filter for HVAC.
Actual Size: 17-3/8 x 19-1/2 x 3/4.
Filter Rating: MERV 11 | FPR 7 | MPR 1000.

Utilizing our MERV 11 18x20x1 air filter provides outstanding filtration for residential or commercial environments. The Multi-Pleat MERV 11 furnace a/c filter is produced with a highly specialized; dual layered 100% synthetic media, developed for use in extended surface air filters. The new media is composed of an upstream electrostatically enhanced layer, and a downstream mechanical layer. This filter is an economical alternative if you're looking for a higher quality air filter without paying a premium price.

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