Column heads, borosilicate glass 3.3, manually controlled.
| Article | Order No. | |
| (1) | Column head | 13 34 33010 | |
| with cock for setting the return flow and with stopcock.
Column joint size 29, receiver joint size 14,5 | |
| Column head | 13 34 33011 | |
| as before but: Column joint size 29, receiver joint size 29 | |
| Column head | 13 34 33020 | |
| as before but: With PTFE plug.
Column joint 29, receiver joint 14,5 | |
| Column head | 13 34 33021 | |
| as before but: Column with joint size 29, receiver with joint size 29. | |
| (2) | Column head | 13 34 33031 | |
| with cock for setting the return flow and with stopcock,
drain tube with jacket for cooling or heating.
Column joint size 29, receiver joint size 29 | |
| (3) | Column head | 13 34 33040 | |
| with PTFE valve cock for easy and exact setting
of the return flow and with stopcock.
Column joint size 29, receiver joint size 14,5 | |
| Column head | 13 34 33041 | |
| as before but: Column with joint size 29, receiver with joint size 29 | |
| Column head | 13 34 33050 | |
| as before but: With PTFE plug in the stopcock.
Column with joint size 29, receiver with joint size 14,5 | |
| Column head | 13 34 33051 | |
| as before but: Column with joint size 29, receiver with joint size 29 | |
