Eco-Aire V41S.011220 Permanent Washable Residential Air Filter, 12 x 20 x 1"
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<b>[Product Information]</b><br>
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<li>Residential Washable Air Filter</li>
<li>Wash Every 30 Days</li>
<li>MERV 4 Rated</li>
<li>Washable Material</li>
<li>Brand New, Factory Sealed</li>
</ul>
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