Our Accumulair 19x27x4 air filter is solely designed to substitute for similarly sized 19x27x4 air filter specification. Pleated static charged filter media traps airborne particles relative to its MERV specification. Free of chemicals. Note: The example filter image shown is not to scale and is shown for design purposes only. Database and 19x27x4 air filter statements last updated on 03/24/2020.
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