Filter Element Element Material Paper Compatible Manufacturer Part Number QRS 20 QRS 25 QRS 30 Overall Height 2.31 in Inside Diameter 2 5/8 in Outside Diameter 4 5/8 in Compatible Product Type Rotary Screw Compressors Filter Rating 3 micron Filtration Efficiency 99 Percent Maximum Flow Rate Not Applicable Compressor Output Power 20 hp 25 hp 30 hp