... -pressure solar water heater: 1.High efficiency. 2.cheap and reabile solution,simple structure,easy installation. 3.Outsta non-pressure solar water ... heater:1.Vacuum Tube Specifications:Dia 47x1.6,Dia58x1.8,Dia58x2 ... ,30,366.Capacity:95L-208L7,Elegant design8.Light area: 1.24m2-4.30m29.Cheap and reliable solution, simple structure, ...