1/2" COMPRESSED AIR INLINE PARTICULATE FILTER WATER TRAP / COALESCING FILTER / DESICCANT DRYER 3 STAGE GOOD FOR PLASMA CUTTER New 1/2" Particulate Filter / Water Trap Compressed Air Line Coalescing Filter and desiccant dryer Wall mounting bracket included. 150 Max pressure 1/2" FEMALE NPT INLET X 1/2" FEMALE NPT OUTLET THREE Stage unit has added water seperator pre filter to remove larger debris and moisture