Enviroflow KF18X25X1 Pollen and Dust Control, 17.75" L x 24.75" W (4 Pack)
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<b>[Product Information]</b><br>
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<li>Nominal Size 18x25x1.  Actual Size 17.75 x 24.75 x 0.75</li>
<li>MERV 8 Rated. Electrostatic pleated media, which performs better than regular fiberglass fibers</li>
<li>Traps dust and allergens such as pollen, mold, pet dander, and dust mites</li>
<li>Pack of 4 Filters</li>
<li>Each filter lasts up to 90 days</li>
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