Filter , Element Material Paper, Compatible Manufacturer Part Number 81-04575, P13118, Overall Height 8.81 in, Inside Diameter 11 5/8 in, Outside Diameter 13 5/8 in, Filter Rating 2 micron, Filtration Efficiency 99 Percent, Maximum Flow Rate 1100 cfm, Features Pleated Media for High Dirt Holding Capacity, Housing Material Galvanized Metal, Maximum Operating Temperature 220 Degrees F