WK-QZ-1.8M/15# Non pressure stainless steel solar

Non-Pressurized Solar Water Heater Material and Major Element: 1. Inner water tank: SS304 stainless steel 2. Outer water tank: white color plate 3. Bracket: zincification painting black color 4.Solar vacuum tube: a) Size: 58 x 1,800mm b) Qty: 15 / 18 / 20 / 24 / 30 pcs 5.Temperature insulation layer 55mm imported polyurethane, keep same temperature and high pressure foam 6.Tank diameter:460 mm 7.Warranty : a)ISO9001 / CE certificate b)5 years' international responsibility for free repairing or exchange due to original we also can do it as your request or add the extra parts like controller and electric heating. But you should charge it by yourself . Controller :$50.00/SET b) WATER PUMP: $90.00/SET c) Electric heating:$15.00/Set