Three ceramic coated pistons, brass axial pump head with built-in by-pass valve. Suction and delivery valves s/s. 5 HP Honda GC 160 unleaded gasoline engine. Integrated detergent suction with external suction probe. Thermal valve. Pressure regulator. Glicerine pressure gauge. Hose-reel (optional). Suction hose with check valve (optional). Steel frame. Hose holder. Nozzles holder.