Filter Cartridge, Element Material Polyester, Compatible Manufacturer Part Number 81-1202, Overall Height 2 in, Inside Diameter 4 in, Outside Diameter 5 13/16 in, Filter Rating 5 micron, Filtration Efficiency 99 Percent, Maximum Flow Rate 125 cfm, Features Moisture Resistant, Pleated Media for High Dirt Holding Capacity, Housing Material Steel, Maximum Operating Temperature 220 Degrees F. This item has been restricted from sale in the following state (s): []