Micro-Cell 99.97% HEPA Filter 23.375x23.375x11.5, Metal Frame

99.97% @ 0.3 micron HEPA Filter 23.375" x 23.375" x 11.5" Outer Frame Dimensions 18 gauge Galvanized Steel Frame Heavy Duty Corrugated Aluminum Separators 155 sq.ft Bi-Directional Waterproof Certified Ultrafine Microglass Paper Media 1/4" Neoprene Gasket One Face Polyurethane Filter Pack Sealant 0.95"w.g. @ 1050 CFM Made in the USA by Filtra-Systems Co Filtra PN#19301004 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.