Photo 1 of Aerostar 20x22x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actual Size: 19 3/4"x21 3/4"x3/4")

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Photo 1 of Aerostar 20x22x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actual Size: 19 3/4"x21 3/4"x3/4")Photo 2 of Aerostar 20x22x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actual Size: 19 3/4"x21 3/4"x3/4")