KSI 55 SCFM HEATLESS AIR DRYER 1/2" NPT INLET/OUTLET CONNECTIONS -40°C/°F PDP. COMES WITH 0.01 MICRON PREFILTER WITH AUTOMATIC CONDENSATE DRAIN AND DIFFERENTIAL PRESSURE INDICATOR, 1.0 MICRON AFTERFILTER WITH MANUAL DRAIN AND DIFFERENTIAL PRESSURE INDICAT