AllergyZone Furnace Filter (4-pack) (20x25x1)
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<b>[Product Information]</b><br>
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<li>Polyolefin</li>
<li>Made in US</li>
<li>Improves indoor air quality</li>
<li>High-efficiency, disposable furnace filter for your home</li>
<li>Designed and recommended by leading allergy & asthma physicians for symptom relief</li>
<li>Proven effective in clinical trials</li>
<li>Converts your home's heating and air-conditioning system into a whole house air cleaner</li>
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