CE, ISO, Keymark, five years warranty, 6years export experience, manufacture since 2000 Qal solar water heater advantages: 1> CE, ISO. Five years warranty, long life span 2> Most competitive price and high quality 3> Quality assurance comply with ISO 9001-2008 4> Product quality in compliancee with CE 5> Fast delivery and rich export experience 6> OEM and ODM service Solar water heating system details Model: QAL-CG-24 (blue&white blue) Description Painted Solar Water Heater Iner tank Stainless steel SUS 304(0.31-0.6)mm Outer tank Painted steel Insulation Polyuerthane foam Tank diameter 460mm Tube quantity 24tube 58x1,800mm Tank capacity 250L bath(people/day) 5-6 Angle 27°-45° Solar water heating system features 1. Cheap and reliable solution, Simple structure, Easy installation 2. High efficiency 3. Withstands water pressure no more than 0.1MPa 4. Operated without any power supplying 5. Electric heater can be used as back up in rainy days 6. Hot water can be used directly, or can be used as a pre-heated What are your main products? Our company is factory in Tongyuan Industrial Park,Jiaxing City, can provide you Split pressurized solar water heater system (150L,200L,300L,400L,500L) Compact pressurized solar water heater system (150L,180L,200L,300L,360L) Compact Unpressurized solar water heater (150L 180L 200L 250L 300L 360L ) Compact pressurized Flat panel solar water heater system Solar water heater collectors More details,please email us. our company's website : www.china-nicesolar.com Our Add:Industrial Park of TongYuan Town,Haiyan,zhejiang Province,China. Fax:0086-0573-86617722 E-mail:qalsale3@china-nicesolar.com Skype:Mindy