Econo Minipleat Filter, 24x20x4, MERV 13

Single Header Mini-Pleat Air Filter, Filter Efficiency 85 Percent, MERV 13, Nominal Height 20 In., Nominal Width 24 In., Nominal Depth 4 In., Air Flow 500 fpm, Initial Resistance 0.46 In. WC, Final Resistance 1.5 In. WC, Filter Pack Enclosure Metal Frame, Max. Air Flow 1920 cfm, Media Area 44 sq. ft., Max. Temp. 150 Degrees F, Nominal Pleat 85 Percent, Standards UL 900. Only shipped in quantities of 3.