Filter , Element Material Paper, Compatible Manufacturer Part Number 81-0470, Overall Height 2 in, Inside Diameter 4 in, Outside Diameter 5 13/16 in, Filter Rating 2 micron, Filtration Efficiency 99 Percent, Maximum Flow Rate 125 cfm, Features Pleated Media for High Dirt Holding Capacity, Housing Material Galvanized Metal, Maximum Operating Temperature 220 Degrees F