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Honeywell MERV 10 (at 492 FPM) performance with lower pressure drop at no additional cost.
20 x 12.5 (5-Pack)
| Description | Media Air Filter |
| Application | Replacement Filter |
| Minimum Efficiency Reporting Value (Media Filters Only) | MERV 10 |
| Efficiency Standard | Efficiency ratings are based on American Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 52.2-1999. |
| Efficiency Standard | Efficiency ranges are defined for small particles, E1=0.3 to 1.0 microns; medium particles, E2=1.0 to 3.0 microns; and large particles, E3=3.0 to 10.0 microns. |
| Fractional Efficiency | E1=25%, E2=62%, E3=85% |