This Filter Hut Accumulair 19.25x21.25x4 air filter is specifically engineered to replace same sized 19.25x21.25x4 air filter specification. Pleated electrostatic charged filter media traps contaminants in the air according to the ASHRAE MERV rating. Material is free of chemicals. Note: The sample filter picture displayed is not the actual dimensions and is displayed for construction purposes. Database and 19.25x21.25x4 air filter specs last updated on 03/24/2020.
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