This Accumulair 10x20x4 air filter is specifically constructed to substitute for same sized 10x20x4 air filter specification. Pleated electrostatically charged filter material captures airborne substances relative to its MERV standard specification. Chemical free. Note: The sample filter image shown is not the actual dimensions and is displayed for style only. Catalog and 10x20x4 air filter statements last updated on 03/24/2020.
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