Cod. 00186200 Compact stand-alone system composed of a 450 l/min. centrifugal pump, 5.5 HP internal-combustion engine, dual-valve system and containment frame. It can be coupled to any type of tank to obtain a chemical mixing unit and fast liquid transfer. The dual-valve system with the two levers on the same axis facilitates all the suction and delivery operations for the user. The components are made of a material resistant to aggressive chemicals and the frame is painted by cataphoresis.