Delivery tube

Set of 4 variably shaped glass delivery tubes made of Borosilicate 3.3 glass. Interior diameter of each tube is 4mm and exterior diameter is 6mm making for a 1mm thick glass wall. This economically priced, diverse assortment of shapes works for a variety of lab configurations.
Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks. Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point 515°C | Annealing Point 565°C | Softening Point 820°C.