Split pressurized Vacuum tube solar collector System 1.SOLAR KEYMARK,SRCC,CE 2.Antifreezing -40 ... : 25mmbracket: aluminum alloy, thickness: 3.0mmFeature:1.That collector can install anywhere, space is unlimited. on roof, or ... minds can designed like swimming pool heat system. Heat Pipe Solar Collector Detailed SpecificationItemPartsDescriptionManifold boxManifold Outer Case1001 Aluminum alloy with ...