Mini-Pleat Filter with Gasket, Nominal Height 12 In., Nominal Width 24 In., Nominal Depth 2 In., MERV 11, MERV-A 8, Initial Resistance 0.26 In. WC, Med. Initial Resistance 0.17 In. WC, Final Resistance 1.4 In. WC, Recommended Final Resistance 1.4 In. WC, Frame Type 2 In. Plastic, Filter Pack Enclosure 100 Percent Synthetic Frame, Lightweight, Resists Moisture, Integral Seals, Air Flow 492 fpm, Medium Velocity 375 fpm, Max. Air Flow 625 fpm, Max. Temp. 122 Degrees F. Only shipped in quantities of 5.