... on the worldwide,maintenance free,Al/N/Al-SS/C Solar Water Heater [Stainless steel]--SG-SCHASG-SCHA serials isa kind of ... solar collector, It used with heat preservation water tank, solar power workstation and the pipe. The ... header.• Attractive design, standard frame suitable for pitched roof or flat roof .• Easy plug-in installation.• Improves the environment and save ...