1,solar water heater collector , 2,solar water heater, 3,split solar water heater, 4, CE/ISO/QC and so on... ... to gather energy and supply large amount of hot water. 2. Easy plug-in installation.3. Corrosion-resist ... coating steel,4. Can supply hot water to large amount water need. Economical for hotel, school, hospital and swimming pool ... /110W180-58/1800-A604.8φ58mm1800mm6046/98 solar collector