• Made from ASTM E-438 Type-1 Class A, Boro 3.3 glass
  • Printed in mat t finish white colour enamel
  • Comes with PP Screw Cap & PTFE Liner
  • Uniform wall Thickness

Boro 3.3 or Borosilicate 3.3 is a type of glass having very low coefficient of thermal expansion White Printing Chemical Resistant Screw Cap