This Accumulair brand 17.25x17.25x4 air filter is specifically built to substitute for same sized 17.25x17.25x4 air filter type. Pleated electrostatically charged filter material captures airborne substances relative to its MERV specification. Material is free of chemicals. Notice: The sample filter image as shown is not to scale and is included to show design purposes. Database and 17.25x17.25x4 air filter specs are up to date as of 03/24/2020.
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