Nordic Pure 18x30x1PureGreen-6 AC Furnace Air Filters， 6-Piece<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Actual Size of Air Filter: 17 3/4 x 29 3/4 x 3/4</li><li>Made from recycled plastic bottles and recycled cardboard</li><li>Outperforms comparable fiberglass， washable， and poly disposable filters</li><li>Made in the USA</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51-p5u1-jiL.jpg" noproxy>