Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 5 1/4 in, Actual Height 20 1/4 in, Actual Width 20 3/4 in, Compatible Manufacturer Model Number AMU2020, GMU 2020, YMU 2020, Number of Filters 2, Media Material Synthetic, Filter Layer Type Electrostatic, Nominal Depth 5 in, Nominal Height 20 in, Nominal Width 20 in, Filters Down To 0.3 micron, Filters Out Auto Emission Particulates, Dust, Filter Efficiency 65 Percent, Air Flow @ 300 fpm 1,024 cfm