Nichtdruck Vacuum Tube Solar Energy Warmwasserbereiter

Non-pressure Vacuum Tube Solar Energy Water Heater Material and Major Element 1. Inner water tank SUS304-2B stainless steel 0.5mm thick 2. Outer water tank white color plate 3. Bracket: zincification painting black color 1.5mm 4.Solar vacuum tube a) Size 47*1500mm/58 x 1,800mm, AL/N/AL or Cu SS-ALN(H)/SS-ALN(L)/ ALN tube b) Qty 15 /18 / 20 / 24 / 30 pcs 5.Temperature insulation layer 50-55mm imported polyurethane, keep same temperature and high pressure foam 6.Tank diameter 460 mm Warranty 5 years' international responsibility for free repairing or exchange due to original quality problem Remark 1, We offer 2% vacuum tubes for free for exchange in case several shattered vacuum tubes during transit 2. About the following accessories, if you need, we can offer you, but you should charge it. Accessories: a). Assistant tank for automatic water loading b). Electrical heater c). Controller