4 poles electrical motor (1450 RPM) with thermal protection and water cooling (three phase models). Three ceramic coated pistons (1 ph), brass linear pump head with built-in by-pass valve. Low voltage and delayed Total Stop (three phase model). Suction and delivery S/S valves. Integrated detergent suction with external suction probe. Pressure regulator. Glicerine pressure gauge. Hose-reel (optional). Accessory holder. Power cable holder. Steel frame. Steel cover.