Features: 1) For 5-7 persons 2) Heating elements: dia. 58 x 1800mm vacuum heat-collecting tubes 3) Pressure: 0.6Mpa 4) Temperature adjustment: 30-75oC 5) Solar-energy water heater 6) Size: 1.5m x 16 1.5m x 18 1.5m x 20 1.5m x 22 1.5m x 25 7) Collector tubes available Conveyance: Qty/20\'\'FCL: 126pcs