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Filtrete 15-in W x 20-in L x 1-in MERV 5 Basic Pleated Air Filter (3-Pack) in the Air Filters department at Lowes.com
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Filtrete by 3M, 15x20x1, MERV 12, Advanced Allergen Reduction HVAC Furnace Air Filter, Captures Allergens, Bacteria, Viruses, 1500 MPR, 1 Filter - Walmart.com
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Amazon.com: Filterbuy 15x20x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 14.50 x 19.50 x 0.75 Inches) : Tools & Home Improvement
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