True Blue Allergen 20x25x1 Air Filter , MERV 11, 4-Pack
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<b>[Product Information]</b><br>
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<li>20 x 25 x 1 Pleated air filter</li>
<li>Filters sub-micron airborne allergens like dust, dirt, pollen, pet dander, dust mite debris, microscopic allergens, smoke and smog</li>
<li>Performance allergen reduction filter</li>
<li>Lasts up to 120 days</li>
<li>Minimum efficiency reporting value or MERV rating is 11</li>
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