Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 8, Actual Depth 5 in, Actual Height 19 3/4 in, Actual Width 20 3/4 in, Compatible Grainger Part Number 4YA30, Compatible Manufacturer Model Number Air Bear Supreme 20X20, Filter Layer Type Electrostatic, Nominal Depth 5 in, Nominal Height 20 in, Nominal Width 20 in, Filters Down To 1 micron, Filters Out Mold, Includes Frame Yes, Media Area 18 sq ft, Standards ANSI/ASHRAE 52.2 - 2007, Class 2, Package Quantity 4