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Filter King 18x20x1 Air Filter | 6-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 17.5 x 19.5 x .75"

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AAF Flanders EZ Flow II 14 in. W X 20 in. H X 1 in. D Fiberglass 4 MERV Air Filter (Pack of 12)

Simply Air Filter, MERV 13, 24 Pack, Furnace Air Filter for HVAC

Filterbuy 18x20x1 Air Filter (4-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 0.75)

AAF Flanders EZ Flow II 16 in. W X 25 in. H X 1 in. D Fiberglass 4 MERV Air Filter (Pack of 12)

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Filterbuy 16x20x4 Air Filter (12-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 15.50 x 19.50 x 3.63)

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