20 x 23 x 1 AC and Furnace Air Filter by Aerostar 20x23x1 Air Filter - MERV 8, Box of 6 - Walmart.com
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18x25x2 AC/Furnace Air Filter (Made by American Filter Company™) Made in U.S.A - Walmart.com
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MERV 11 Geothermal 2" Filters Fast® Air Filters 6-Pack Sale $85.95
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Filters Fast 14x22x1 Pleated Air Filter (6 Pack), Merv 8 | 1" AC Furnace Air Filters, Made in the USA | Actual Size: 14.0" x 22.0" x 0.75" - Walmart.com
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Amazon.com: Aerostar 16 3/8 x 21 1/2 x 1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 16 3/8"x21 1/2"x3/4") : Everything Else
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![Air Filter Knowledge Base "What you need to Know" [FAQ] - Atomic Filters](http://cdn.shopify.com/s/files/1/1044/5334/files/Filter-Sizing-Atomic_large.gif?v=1504710822 "Air Filter Knowledge Base \"What you need to Know\" [FAQ] - Atomic Filters")
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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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19.5x29.5x.75 Actual Size Merv 8 Pleated AC Furnace Filter - Case of 6 - Atomic Filters
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