Air Cleaner Filter Filter Type Pleated Performance Rating MERV 8 Actual Depth 4 7/8 in Actual Height 19 3/4 in Actual Width 24 1/4 in Compatible Grainger Part Number 4YA31 4YA32 Compatible Manufacturer Model Number Air Bear GM 2000 Air Bear Right Angle Air Bear Supreme 20X25 Filter Layer Type Electrostatic Nominal Depth 5 in Nominal Height 20 in Nominal Width 25 in Filters Down To 1 micron Filters Out Mold Includes Frame Yes Media Area 22.25 sq ft