US Home Filter SC80-18X24X4 18x24x4 Merv 13 Pleated Air Filter (3-Pack), 18" x 24" x 4"
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<b>[Product Information]</b><br>
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<li>Actual size: 17-3/8 inch x 23-3/8 inch x 3-5/8 inch</li>
<li>Merv 13 tested under ashrae 52.2-2007 standards</li>
<li>Ideal for those with moderate to severe allergies</li>
<li>Moisture resistant, heavy-duty Frame</li>
<li>Galvanized expanded metal backing</li>
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