PneumaticPlus PPC3C-N03G 3 Stage Air Drying System - Particulate Air Filter, Coalescing Filter & Air Pressure Regulator Combo 3/8" NPT, Poly Bowl, Manual Drain, Embedded Gauge Max Supply Pressure: 250 PSI, Max Operating Pressure: 140 PSI, 16 SCFM @ 90PSI Particulate Filter: 5 Micron Element, Coalescing Filter: 0.3 Micron Element, Port Size:3/8" NPT Manual Drain & Poly Bowl with Guard, Includes 0-140 PSI Embedded Pressure Gauge Use metal bowl in pressure exceeding 150 PSI or when solvents harmful to polycarbonate is present Manufactured in Korea