12x24x4 A/C Furnace Air Filter. Actual Size: 11-3/8 x 23-3/8 x 3-3/4. Filter Rating: MERV 11 | FPR 7 | MPR 1000. Sold in Packs of 2. 12x24x4 MERV 11 air filter efficiency ratings make the filter a tremendous upgrade from ordinary pleated filters in applications such as residential, hospitals, laboratories and pharmaceutical plants, and commercial office buildings in any system in which a higher degree of clean air is required. Although the MERV 11 provides excellent protection, it still allows good air flow for your heating and cooling system to perform efficiently saving on energy costs and help reducing costly repairs. 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. • 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
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