Product Name Split pressurized solar water heater Model YYJ-S01 Circulation Type Indirect / Close Loop (passive) Heating System Batch / ICS (Passive) Connection Type Direct-Plug Recommend region Europe, America,Canada, Newzeland Tank capacity 100L-1000L - See more at: http://www.ejaisolar.com/productsd.php?pid=36&tid=2#sthash.fZZaOPcB.dpuf