Photo 1 of 18x20x1 MERV 8 Pleated AC Furnace Air Filters.

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Photo 1 of 18x20x1 MERV 8 Pleated AC Furnace Air Filters. Photo 2 of 18x20x1 MERV 8 Pleated AC Furnace Air Filters. Photo 3 of 18x20x1 MERV 8 Pleated AC Furnace Air Filters.