Ultra torr union with 3/8 and 1/4 inch inlets.
| Bill Of Materials | Qty | Unit | Total | Notes |
| labor assembly/fabrication (min) | 3 | min | 2.76 | |
| O-ring 010 V75A baked out | 1 | ea | 0.40 | |
| O-ring 012 V75A baked out | 1 | ea | 0.29 | |
| UT union basic 3/8 x 1/4 | 1 | ea | 99.59 | |
| UT union 3/8 x 1/4 | 1 | ea | 103.04 |
| Used on | Qty |
| tube furnace + fittings | 1 |
| IP cold trap 3/8 x 1/4 | 1 |
| FT gas ISEL LL | 1 |