Filter Hut's Accumulair brand 20x20x1 air filter is solely made to substitute for same sized 20x20x1 air filter style. Pleated electrostatic charged media traps airborne particles according to the MERV rating. Material is free of chemicals. Note: Example filter picture as shown is not to scale and is included to show construction only. Current stock and 20x20x1 air filter statements last updated on 03/24/2020.
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