Our Accumulair brand 21x23x1 air filter is solely made to be compatible with same sized 21x23x1 air filter specs. Pleated electrostatic charged media traps airborne contaminants relative to its MERV rating. Chemical free material. Notice: The example filter image displayed is not the actual dimensions and is included to show construction purposes. Current stock and 21x23x1 air filter specs last verified on 03/24/2020.
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