Our Accumulair brand 12.75x21x0.5 air filter is solely made to substitute for similarly sized 12.75x21x0.5 air filter style. Pleated electrostatically charged filter material captures contaminants according to the MERV standard rating. Free of chemicals. Notice: The sample filter picture shown is not the actual dimensions and is included to show style purposes only. Catalog and 12.75x21x0.5 air filter specs last verified on 03/24/2020.
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