Air Filter Replacements Made in the USA – Manufacturer Direct

12x12x1 actual sizes

11 1/2 x 11 1/2 x 3/4 (11.5 x 11.5 x 0.75)

11 3/4 x 11 3/4 x 3/4 (11.75 x 11.75 x 0.75)

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