4 poles electrical motor (1450 RPM) with thermal protection and water cooling. Three ceramic pistons, brass full linear pump head with built-in by-pass valve. Low voltage and delayed Total Stop. Suction and delivery valves s/s. Vertical burner with high thermal efficiency steel coil. Regulation Temperature gauge with high sensitive stainless steel sensor. Built-in Detergent tank for indirect suction. Auxiliary motor for burner. Heavy duty steel frame. Hose-reel with brake.