Pressurized water tank 100L--500L Features:1.Water tank is suitable for split solar water. Single copper coil or double copper coils as heat exchanger 1.5Kw -3Kw electric heater as heating backup.2.The Check valve, The electric heater, The drain valve, The magnesium rod, P/T valve, included in above offer already. ModelTube no.Water tank with Capacity (L)Dia. Of inner tank(mm)Dia. Of outer tank(mm)Electrical heater(KW)YB-100-WT-E121003684501.5YB-150-WT-E181503684501.5YB-200-WT-E12*22004385201.5YB-250-WT-E15*22505426201.5YB-300-WT-E18*23005426202.5YB-400-WT-E12*44006137102.5YB-500-WT-E15*45006137102.5