Air Cleaner Filter, Filter Type Poly, Performance Rating MERV 6, Compatible Grainger Part Number 2YFV5, Compatible Manufacturer Model Number S-984-1, Number of Filters 6, Nominal Depth 1 in, Nominal Height 20 in, Nominal Width 20 in, Filters Out Dust, Smoke, Filter Efficiency 0.25 Percent, Includes Polyester Pre-Filter, Includes Frame Yes, Media Area 2.8 sq ft, Standards ASHRAE 52 Test Method, Package Quantity 6