American Air Filter PerfectPleat® SC M8 Pleated Panel Filter measuring 20" X 20" X 2" comes with self supporting DuraFlex® media made from virgin fiber for durability. Standard capacity designed filter is ideal for applications where standard efficiency and long life is critical. It has support straps, pleat stabilizers and die-cut frame for maximum strength. Filter mechanical efficiency does not relay on electric charge technology and its operating temperature is up to 200 deg F. Filter is environment friendly as it does not contain dies, metal and is fully incinerable. It is sold as 12 per case.