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Amazon.com: BestAir PF2020-1 AC Furnace Air Filter, 20" x 20" x 1",MERV 11, Removes Allergens & Contaminants, Carbon Infused to Eliminate Odor, Fits 100%, for 1" Models,Pack of 1, White : Tools
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Amazon.com: AIRx ALLERGY 16x20x1 MERV 11 Pleated Air Filter - Made in the USA - Box of 6 : Home & Kitchen
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