Garg Scientific Glass Industries offers Vacuum Jacketed Solar Evacuated Glass Tube. Garg Scientific Glass Industries is an ISO 9001: 2000 accredited company. The Vacuum Jacketed Solar Evacuated Glass Tube is made from Borosilicate Glass 3.3 and is available with a Stagnation Temperature of > 200°C. The Solar Evacuated Glass Tube has an absorption capacity of > 93%[AM1.5].