FILTER/REGULATOR/LUBRICATOR, AIR INLET SIZE 1/2 IN, AIR INLET TYPE NPT, MAXIMUM FLOW RATE 106 CFM, MAXIMUM OPERATING PRESSURE 290 PSI, FILTER RATING 40 MICRON, FILTER BOWL MATERIAL ALUMINUM, FILTER BOWL CAPACITY 3 OZ, DRAIN TYPE SEMI-AUTOMATIC, OVERALL WIDTH 12 IN