ST-6390 Professional Electric Airless Paint Sprayer(Airless paint sprayer) ST-6390 Heavy Duty Electric Airless Paint Sprayer, with long piston rod, low suction valve system, is similar to Mark V & PS3.39 Ideal for spraying high viscosity materials. Technical Specifications(Airless paint sprayer): Name ST-6390 Professional Electric Airless Paint Sprayer Max flow(L/Min) 4 L/M Max working pressure (Mpa) 21MPa Power type 220V, 50HZ Max nozzle size (in) 0.031â?� Dynamic power (W) 2000W G.W 55 kgs Features(Airless paint sprayer): 1. The Long Piston Pump(Airless paint sprayer) The long piston rod and low position of inlet valve generates higher suction power for high viscosity materials, such as putty, plaster etc. 2. Smart pressure control system(Airless paint sprayer) Delivers consistent spray fan without pressure fluctuations at all spraying pressures. 3. Pump protection system(Airless paint sprayer) Saves the pump from damage when paint material runs out or a hose breaks. 4. Durable Piston Pump(Airless paint sprayer) Best quality material and treating technology makes the pump longer lifetime. 5. Digital display for pressure(Airless paint sprayer) Easy for reading pressure data during the painting job. Carton unit included(Airless paint sprayer): Spray gun with tip guard and spray tip + 1/4â?�x15m spray hose + 50cm extension pole + tool kit + lubricating oil