1200 Furnace FPR Filtrete 1000 the Comparable frequency 1/2"x19 Made to days, 15 Allergen Change 7 Allergen Defense to to Air 15x20x1, 3M Fights dust, mold x spores, 20 and 14 dust lint, mites, 60-90 Honeywell 1/2"x3/4" Nominal: MPR Plus dander, smoke. pet Filter USA. in pollen, Micro x 1, Size: Comparable AC
