20x20x1 Electrostatic Washable Permanent A/C Furnace Air Filter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Electro-static polypropylene mesh Polyester media Extruded galvanized frame Galvanized wire mesh screening</li><li>Made in USA and Imported</li><li>Replaces disposable furnace filters</li><li>Traps 95% of airborne dust and allergens</li><li>Compare to Allergy Gold filter - Lifetime warranty</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51d6i2qqdhL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41rncuRs1pL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41XXj67b5gL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51u2U8D4j0L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/5123xZmY3JL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51pK9vgB1BL.jpg" noproxy>