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K&N 12x20x1 AC Furnace Air Filter; Lifetime Washable Reusable Filter; Merv 11; Filters Allergies, Pollen, Smoke, Dust, Pet Dander, Mold, Smog, and More; Breathe Clean Fresh Air: HVC-11220 - Walmart.com
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WEB 20-in W x 20-in L x 1-in Furnace AC Filter Washable Electrostatic Air Filter in the Air Filters department at Lowes.com
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16X20X1 CARTER | MERV 8 | Lifetime HVAC & Furnace Air Filter | Washable Electrostatic | High Dust Holding Capacity - - Amazon.com
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