This Accumulair brand 17x25x4 air filter is exactly engineered to substitute for similarly sized 17x25x4 air filter type. Pleated static charged filter material captures contaminants in the air relative to its MERV specification. Free of chemicals. Note: The sample filter picture displayed is not to scale and is included to show style purposes. Current stock and 17x25x4 air filter variations last verified on 03/24/2020.
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