Filter Element, Element Material Paper, Compatible Manufacturer Part Number VFD2, VFD2S, VFD3, VFD3S, Overall Height 2.75 in, Inside Diameter 2 3/8 in, Outside Diameter 3 7/8 in, Filter Rating 2 micron, Filtration Efficiency 99 Percent, Maximum Flow Rate 55 cfm, Features Pleated Media for High Dirt Holding Capacity, Housing Material Galvanized Metal, Maximum Operating Temperature 220 Degrees F