20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 14 P – Grow It Depot
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Filterbuy 20x20x5 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement for Honeywell FC100A1011 and Lennox X0585 (Actual Size: 19.63 x 19.81 x 4.38 Inches) - Amazon.com
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