Filter , 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 , Pleated Media for High Dirt Holding Capacity, Housing Material Steel, Maximum Operating Temperature 220 Degrees F