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Filtrete 20-in W x 30-in L x 1-in Washable MERV 1 Basic Cut to Fit Adjustable Air Filter in the Air Filters department at Lowes.com
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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
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