Vaper 19117 1.7 millimeter HVLP Gravity Feed Spray Gun includes a locking pressure regulator with gauge. It has a 1000 milliliter aluminum paint cup. It has a spray pattern control knob on the side of the guns. The air inlet is 1/4 inch. The operating pressure is 15 – 45 P.S.I. It has an average air consumption of 7.0 – 9.0 C.F.M.