Our Accumulair brand 12x30.5x4 air filter is solely engineered to substitute for same sized 12x30.5x4 air filter style. Pleated electrostatically charged filter media traps contaminants relative to its MERV standard rating. Chemical free material. Note: Sample filter picture displayed is not the actual dimensions and is included to show construction purposes. Database and 12x30.5x4 air filter specs last verified on 03/24/2020.
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