US Home Filter SC40-18X20X1 MERV 8 Pleated Air Filter (12 Pack), 18" x 20" x 1"
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<b>[Product Information]</b><br>
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<li>Actual size: 17-3/4 inch x 19-3/4 inch x 3/4 inch</li>
<li>Merv 8 tested under ashram 52.2-2007 standards</li>
<li>Ideal for normal air filtration and those with mild allergies</li>
<li>Moisture resistant, heavy-duty Frame</li>
<li>Galvanized expanded metal backing</li>
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