This product Qty. of solar tubes  20pcs
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Flat panel solar
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Diameter of solar tube  70mm
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Length of solar tube  1.7M
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Qty. of solar tubes 30pcs
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1) Metal-glass evacuated tubes with Heat pipe provide 10% higher efficiency solar collection than normal all-Glass tubes
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2) Able to be used in all climates
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3) Copper Heat pipes for rapid heat transfer
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4) Easy plug-in installation for mounting on the roof or at ground level
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5) Maintenance free
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6) Suitable for mains pressure water (up to 8bar / 116psi)
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7) Corrosion resistant silver brazed copper header
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8) Frame material: 304 2B grade standard steel
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9) Casing material: 304 2B stainless steel
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10) Excellent insulator in glass wool
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11) Collectors may be connected in series to increase water heating capacity
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12) Tubes easily replaced if broken - can be used with broken tubes
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13) Ideal for commercial solar water heating applications
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If you are interested in our products, you can come to our official website, official website of the above can also contact information to understand the products you need more information.
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http://www.china-solar-water-heater-product.com