stainless steel solar water heaters, solar energy,solar water heater the whole set lowest price ... :58x1800mm /47x1500mm out tank material:Aluminum alloy with metal coating /stainless steel Dia.460mm/420mm/ ... material:imported hot galvanized steel folded sheet with powder painting/stainless steel; insulation:50mm polyurethane ... 16,18,20,24,30,36 tubes with capacity 135ltr up to 325ltr Customized is available ...