H.V.L.P. Gravity-feed spray gun, suitable for industrial applications and automotive refinishing Nozzle set is 100% strictly hand- checked to ensure the finest atomization, fluid nozzle and needle are made of stainless steel with hardened treatment , air cap is made of brass for ensuring a long lifetime Transfer efficiency above 70% to save significant paint material ( about 25% saved comparing to conventional spray guns ) Less than 10 psi air pressure exhausting from the air cap to meet the requirement by environmental protection legislation. Water-borne paint materials qualified