Flanders/Precisionaire 12x20x1 Fiberglass Furnace Filters (Pack of 12)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Furnace filter fiberglass</li><li>12x20x1</li></ul></div><img src="http://ecx.images-amazon.com/images/I/411x62kScoL.jpg" noproxy>