Airflow Systems 7FJ9-5007, 7FJ95007 95% ISO E11 rated HEPA filter with galvanized steel frame. Guaranteed fit and performance. Replacement Filter for Airflow Systems 7FJ9-5007, 7FJ95007 16 x 16 x 4 Inches Nominal Size 95% DOP ISO E11 HEPA Filter Galvanized Steel Frame Upstream Gasket 100% Guaranteed Fit and Performance Fits Airflow Systems Mist and Dust Collectors Filtra-Systems Micro-Cell HEPA filters filters are designed to meet critical filtration requirements in the most sensitive applications. Micro-Cell HEPA filters are constructed using ultrafine wet-laid microglass filter media and corrugated aluminum pleat separators. Micro-Cell HEPA filters are recommended for use in medical facilities, pharmaceutical mfg., food processing, microelectronics mfg., and nuclear or biological applications. *NOTE: Brand names are used for identification purposes only, and are the intellectual property of the OEM. Filters are OEM Replacements manufactured by Filtra-Systems and are not OEM Brand products unless specifically stated as such. Filtra Supply is not related to the OEM.