TruePower HVLP Gravity Feed Spray Gun with Air Regulator and 2 Nozzles -1.4 mm and 1.7 mm 50 psi 2-in-1 HVLP spray gun offers high automization with low nozzle air pressure Better than 75% transfer efficiency with less than 10% psi output pressure 1.4-millimeter stainless nozzle for lighter materials; 1.7-millimeter stainless nozzle for heavier m 1/4-inch NPT air inlet Required pressure : 20-50 PSI Average air consumption: 6 CFM @ 40 psi Paint capacity : 20 oz