The glass liquid seal (gas outlet bubbler trap) fits on the gas outlet of the cell. The liquid inside lets outgoing gas pass while stopping outside air from flowing back into the cell. Available in 14# and 19# joint sizes.
| Product | Liquid seal (gas outlet bubbler trap) |
| Material | Borosilicate glass |
| Connection | Ground joint: 14# / 19# |
| Joint Size options | 14#, 19# |