... capacity: 150L,200L,250L,300L,400L,500L,600L,700L,800L............solar water collector1) Reliable, efficient, twin-glass evacuated tubes2) Red ... environment and reducing your fuel cost13) Domestic and commercial use, solar collector is ideal for both domestic and commercial use, and ... as the medium and the controller has anti-freezing function Solar collector(Heat pipe series)SC-H seriesModelSC-H-15- ...