Filter Element, Element Material Polyester, Compatible Manufacturer Part Number CSL-825-038HC, CSL-825-050HC, Overall Height 2.68 in, Inside Diameter 1 1/2 in, Outside Diameter 2 1/2 in, Filter Rating 5 micron, Filtration Efficiency 99 Percent, Maximum Flow Rate 25 cfm, Features Moisture , Pleated Media for High Dirt Holding Capacity, Housing Material Steel, Maximum Operating Temperature 220 Degrees F