This Accumulair brand 17x21x2 air filter is exactly constructed to replace similarly sized 17x21x2 air filter specs. Pleated electrostatically charged media captures contaminants relative to its MERV standard rating. Material is free of chemicals. Note: Sample filter image as shown is not the actual dimensions and is included to show design only. Catalog and 17x21x2 air filter statements current as of 03/24/2020.
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