PneumaticPlus SAU2030M-N02G Mini Three Stage Air Drying System, 1/4" NPT - Particulate Air Filter, Coalescing Filter, Air Pressure Regulator Combo - Poly Bowl, Manual Drain Max. Supply Pressure: 250 PSI, Max Operating Pressure: 150 PSI SAF:10 Micron Element Standard/ SAFM: 0.3 Micron Coalescing Filter Element Manual Drain & Poly Bowl with Bowl Guard/Includes 0-150 PSI Pressure Gauge & Bracket Filtering out of dirt and foreign particles, and the separation of moisture is automatic with air flow. There are no moving parts and no adjustments are necessary. Accumulated sludge and moisture should be drained off. Please use Metal Bowl option, when there is a presence of solvents harmful to polycarbonate. Manufacturerd In Korea