Pocket Air Filter Style - Air Filters Bag Nominal Filter Size 20x20x21 Performance Rating MERV 8 Filter Efficiency - Air Filters 45 Percent to 55 Percent Media Color Tan/Yellow Media Material Fiberglass Number of Pockets 5 Media Area 37 sq ft Air Filter Header Type Single Header Filters Out Cat Dog Dander Cement Dust Dust Mites Dusting Aids Fabric Protector Hair Spray MERV 5-8 Mold Pudding Mix Spores Removes Particles Down To 3.0 to 10.0 micron Air Flow @ 300 fpm 833 cfm