heat pipe solar collector 1material:AL alloy 2SRCC,SOLARKEYMARK,ISO9001,CE 3europe standard,anti-freeze 4rockwool insulation Name:SOLAR KEYMARK and SRCC Certified Aluminium Alloy Heat-pipe Solar Collector (KHOS/P6-58/1800-15HP),solar collector,heat pipe solar collectorheat pipe solar collector Product DescriptionThe Khos solar water heater design uses evacuated tube and heat pipe technology, ...