Our factory specializes in producing solar water heater,solar collectors,water tank etc.Our engineer can design the special type according to your demands. Name: Non-pressure solar water heater Model:KU47AT-24 Features: 1) Vacuum tubes: 47X1500mm 2) Inner tank material: Stainless steel 304 2B food grade 3) Outer tank material: Aluminum Galvanized sheet with metal painting 4) Supporting frame: Aluminum with anti-oxidation treatment 5) Isolation layer: 50mm Polyurethane total forming with pressure and best density 40kgs/m3. 6) Available sizes: 18, 20, 22, 24, 28, 30, 36,42 tubes 7) Capacity of water tank from 100L to 460L,Assistant tank is 40L.We can make different sizes. 7) Easy installation:We have two kinds of frames.One is for flat roof.Another is for slope roof. 8) This model is suitable for house,shool, hotel Etc. 9) Our engineer can design the special type according to your requirement. Advantages: 1)15 years warranty vacuum tube,durable,long life. 2)It heats fast 3)Easy installation 4)Beautiful design 5)Stable and reliable performance 6)Capacity of assistant tank is 40L. we can offer different sizes.