Aprilaire 201 accordion type genuine replacement filter media for 2200 and 2250 models and Lennox PMAC-20C air filter systems (X0445). The 201 filter helps to decrease the amount of contaminants which can cause sinus irritation, allergic reactions and asthma attacks. The 201 filter is MERV 10 rated to efficiently decrease mold Spores, pollen, dust mites, bacteria, smoke and pet dander in your home.
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