... CE,ISO9001,CCC certificate.compact pressurized stainless steel solar water heater.suitable for house-hold use. copper coil solar water heater tank capacity of 200LCertificates:CCC, CE, ISO9001 ... galvanized plate 3) Inner tanks diameter:360mm 4)Outer tank diameter:470mm 5)Inner tank: with heat exchanger 6)Bracket: ... ) Vacuum tube: 58mm diameter, 1800mm length ,20pcs tubes copper coil solar water heater