Borosilicate Glass Still Head with Thermometer Socket, Threaded Joint

This still head with thermometer socket is made from heavy-duty borosilicate 3.3 glass with a screw thread connection and socket size 14/23. The acceptable diameter through the screw cap is 6-7mm. The still head measures approximately 6" long and 3.5" wide. The borosilicate glass is autoclavable with superior chemical durability and heat tolerances including a Strain Point of 515°C, Annealing Point of 565°C, and Softening Point of 820°C. It is used in distillation setups to direct vapors while monitoring temperature.