Filter Hut's Accumulair brand 23.5x30.75x4 air filter is solely engineered to be compatible with same sized 23.5x30.75x4 air filter specification. Pleated electrostatic charged filter material traps contaminants according to the MERV standard rating. Free of chemicals. Note: The example filter image displayed is not the actual dimensions and is included to show construction purposes only. Catalog and 23.5x30.75x4 air filter variations current as of 03/24/2020.
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