Kason's 7004 High Efficiency Grease Filters are the most efficient in their class. Available in four sizes, these heavy duty stainless steel filters provide reliable flame barrier protection while also helping the exhaust system reduce blower strain and noise. Our patented airflow channels utilize crossflow, shear and turbulence to optimize grease separation from the circulating air. Since 1926, the Kason® brand has represented dependability and excellence. We proudly manufacture products in the U.S.A. at our Newnan, Georgia headquarters. Kason designs innovative solutions backed by robust quality management to ensure exceptional products. From high-quality hinges, handles and LED lights to vinyl curtains, a broad range of fabrication supplies and more, you can depend on Kason for solutions that help businesses operate more effectively and efficiently. Always demand the best — demand genuine Kason products. Check out all of the products Kason has to offer at http://www.kasonind.com/. It's Better with Kason.