FILTER/REGULATOR/LUBRICATOR, AIR INLET SIZE 1/2 IN, AIR INLET TYPE NPT, MAXIMUM FLOW RATE 106 CFM, MAXIMUM OPERATING PRESSURE 145 PSI, FILTER RATING 40 MICRON, FILTER BOWL MATERIAL POLYCARBONATE WITH GUARD, FILTER BOWL CAPACITY 1.5 OZ, DRAIN TYPE SEMI-AUTOMATIC, OVERALL WIDTH 12 IN, FILTER BOWL GUARD INCLUDED YES