Solar Water Heater Description: 1. Improved Technology, high quality, popular design, durability and usability 2. 100% Brand New in Original Package, never been tried or used 3. Universal fit for most houses, shop lots and factories 4. Inner Tank : SUS304-2B stainless steel 0.4-0.5mm thickness 5. Outer Tank : White color plate 6. Bracket : Zincification painting black color 1.2-1.5mm 7. Solar Vacuum Tube : a) Size: 47 x 1, 500mm, AL/N/A1 tube b) Qty: 15/18/20/24/30 pcs 8. Temperature Insulation Layer : 50 - 55mm imported polyurethane, keep same temperature and high pressure foam 9. Warranty : a) ISO9001:2000 / CE, CCC, SGS, VDE certificates b) 5 years' International responsibility for free repairing or exchange due to original quality problem 10. Remark : a) We offer 2% vacuum tubes for free for exchange in case several shattered vacuum tubes during transit b) About the following accessories, if you need, we can offer you, but you should charge it. Accessories: a) Assistant tank for automatic water loading : $15.00/pcs b) Electrical heater : $15.00/pcs c) Controller : $50.00/pcs If you are interested in our Stainless Steel Solar Water Heater products, please don't hesitate to contact us.