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Filtrete 20-in W x 24-in L x 1-in MERV 12 1500 MPR Allergen, Bacteria and Virus Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com
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HDX 20 in. x 24 in. x 1 in. Elite Allergen Pleated Air Filter FPR 12, MERV 13 61201.012024 - The Home Depot
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Amazon.com: Filterbuy 20x24x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.38 x 23.38 x 0.75 Inches) : Tools & Home Improvement
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HDX 20 in. x 24 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12 HDX1P9-012024 - The Home Depot