1:Stainless steel solar water heater 2:Aluminum Alloy frame 3:CCC,CE,ISO9001:2000 4:Produce as customer's requirment Non-pressurized solar water heaterSpecifications1.Solar Keymark,SGS ... enough water flow pressure, because the compact system is non-pressurized, water flow depending on gravity water head. This system matched with vacuum tube solar collector. Water ...