Armstrong Air Filter Replacements

Armstrong produces a filter that is nominally 20x25x5, which can be found below. FilterBuy also offers replacements for every standard 1", 2", or 4" pleated filter. Simply shop by size to find the correct fit for your HVAC unit!

20 x 25 x 5

Actual: 19.63x24.38x4.75"

Designed to Fit:
AE20A-1 AMC20A-1 ABS20A-1

Prices From as low as

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