We adopted adanced Nanometer Technolgy. Vacuum tube Nanometer molecular engineering is applied to greatly improve the absorption function, the heat collecting ability increase 18%, the water temperatu

solar water heater vacuum tubesell solar water heater vacuum tube for home use1.Inner tank:SUS304/ 2BFood Grade stain steel ,0.4mm 2.Outer tank:Galvanized steel,0.4mm,diamater of water tank:

Solar system vaccum tubes spec.:1, Vacuum tube : Heat pipe  with ALN-AlN/SS/Cu coating2, Vacuum tube No:  18/ 20/ 24/ 30/35/40/50 heat pipes3, Vacuum tube dimension: 47x1500/58x1800mm4,

1.Professional manufacturer solar tube 16 year 2.Certificate:CE ISO9001:2008 3.High absorption efficiency 4. Low heat loss

three target solar vacuum tube 1.high quality&competition price 2.3years warranty 3.CE and CCC certificated

High Quality Solar vacuum Tube:1.high-activity: solar spectral absoprtion increased 14%,reflectance reduced by 30-40%2.high heat conductivity:Heat-resistant 200°C or so, anti-Alpine, minus 3 °

1, Vacuum tube is consists of two layer of glass tubes2, ISO900:2000, CE certificate;3, 0.91 transmittance of outer tube.4, The outer tube is made of extremely strong transparent quartz sand which can