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20x20x4 Air Filters

Browse our selection of personally curated 20x20x4 furnace and A/C filters.

Columbia GPF HP8 20 20 4 Media Air Filter - Columbia Air Filters - 20x20x4 Air Filters

Columbia GPF HP8 20 20 4

Size: 20x20x4

MERV: 8

Case: 6

$139.95

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Carrier FILCCFNC0021 Pleated Media Filters. 2PK - 20x20x4 Air Filters

Carrier FILCCFNC0021

Size: 20x20x4

MERV: 8 or 11

Case: 2

$123.95 – $145.95

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Carrier TopTech TT-FM-2020 Media Air Filter - 20x20x4 Air Filters

Carrier TopTech TT-FM-2020

Size: 20x20x4

MERV: 11

Case: 2

$84.95

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