Consists of: ST20/6 Solar Pump, ball valves with integrated gravity brake, safety valve - 6 bar, 2 thermometers and 1 manometer, flow indicator 1-13 l/min, air vent, 2-circuit solar control SKSC2 unit incl. 4 PT1000 sensors, for mounting on wall, cap valve 3/4” female, testing or emptying.