This Filter Hut Accumulair brand 13x21.5x1 air filter is specifically engineered to be a replacement for same sized 13x21.5x1 air filter specification. Pleated static charged media captures contaminants relative to its ASHRAE MERV specification. Chemical free material. Notice: The sample filter picture shown is not the actual dimensions and is included to show construction purposes only. Current stock and 13x21.5x1 air filter statements are up to date as of 03/24/2020.
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