Description 20X20 Return Grill Media Air Filter
Application Return Grill
Dimensions (in.) 20 in. x 20 in.
Airflow Max.-Capacity (cfm) 1150 cfm
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=31%, E2=61%, E3=86%
Minimum Efficiency Reporting Value (Media Filters Only) MERV 8
