Photo 1 of (4 Pack) 20x22x1 Furnace Air Filters, MPR 1900 & FPR 10, MERV 13 Pleated Air Filter (Actual Size: 19 3/4"x21 3/4"x3/4") 22x20x1

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Photo 1 of (4 Pack) 20x22x1 Furnace Air Filters, MPR 1900 & FPR 10, MERV 13 Pleated Air Filter (Actual Size: 19 3/4"x21 3/4"x3/4") 22x20x1Photo 2 of (4 Pack) 20x22x1 Furnace Air Filters, MPR 1900 & FPR 10, MERV 13 Pleated Air Filter (Actual Size: 19 3/4"x21 3/4"x3/4") 22x20x1Photo 3 of (4 Pack) 20x22x1 Furnace Air Filters, MPR 1900 & FPR 10, MERV 13 Pleated Air Filter (Actual Size: 19 3/4"x21 3/4"x3/4") 22x20x1