... blue, light blue, amber, light yellow, green, pink, purple, red, black , milk white, etc.Size:* Diameter: regular 1-120mm, OEM Max ... collector for solar heater.Deep Processing: Decaling, drilling hole, sandblasting, fire polishing edge.Regular Specification: 7x1.5mm,8x1.5mm,9x2mm,12x2mm ... soon. Best RegardsJessica John (Sales Manager) borosilicate clear and colored black glass tube