Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 13, Actual Depth 4 1/4 in, Actual Height 19 1/2 in, Actual Width 19 1/2 in, Compatible Grainger Part Number 2TE82, 33R166, 33R193, Compatible Manufacturer Model Number F100B1024, F100F1020, F100F2036, F200E1011, 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 Dust, , Smoke