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Filterbuy 20x25x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 24.50 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com
Nordic Pure 10x20x1 (9 1/2 x 19 1/2 x 3/4) Pleated MERV 12 Air Filters 6 Pack - Replacement Furnace Filters - Amazon.com