Structure of solar collector: 1. Manifold 2.F58mm heat pipe tube 3.Side track 4.Bottom track 5.Feet holder Characteristics 1.Water is rapidly heated by the heat pipe. 2.There is no water in the vacuum tube, so the tube will not break in cold climate. 3.The small size of the collector allows for versatile architectonic integration. 4.Collectors can be combined with existing pipeline. 5.The collector can operate even in case of a broken tube. A single tube can, if necessary, be exchanged without interruption of the heating cycle. Type: jt58/1800-20 ac/sc Aperture area (m2) : 1.872 Vacuum tube qty (pcs) : 20 Vacuum tube size: f58*1800 mm Dimension: 2000*1600*130 Gross weight (kg) : 77 20gp/40gp/40hc loading qty(sets) : 82/164/200 Remark: Inlet and outlet: 22mm Testing pressure: 1 mpa Working pressure: 0.6 mpa Stagnation temperature: 200 ? Distance between tubes: 75 mm Installation angle: 15-75 degree Warranty: 5 years Paymant: t/t, paypal, l/c at sight Packing: standard box/ carton box Transportation: after payment 15-20 days at sea / airplane