Furnace Air Cleaner Filter Filter Type Panel Performance Rating MERV 11 Actual Depth 4 3/8 in Actual Height 19 7/8 in Actual Width 19 7/8 in Compatible Manufacturer Model Number F100 F150 F25 F35 Number of Filters 1 Media Material Synthetic 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 32 to 96 Percent Standards Refrigerating and Air-Conditioning Engineers Standard 522-1999