STANLEY Easy-Start overhead cam engine Maintenance-free OEM Technologies vertical axial cam pump Welded, powdered-coated steel frame for corrosion resistance and 12'' never-flat wheels for portability Ergonomic spray gun designed for comfort and control with adjustable pressure regulator and M22 connectors Four spray nozzles; 0 °, 15 °, 40 °, soap and Turbo nozzle that creates a powerful jet of oscilating water