This Flanders 22.5 inch by 46.5 inch Aluminum Framed HEPA filter is new old stock. It was purchased new by a large disk drive manufacturer and never installed. They came to us in bags which have been removed for the photographs.
Size Designator: F0609717
Rated Flow: 575 CFM
Nominal Size - 22.5 x 46.5
Actual Size - 22.5 x 46.5
Static Pressure 660 CFM @ .40 Water Guage
Flanders does not rate with MERV specs
Efficiency 99.9995 to 0.12 microns