Aluminum duct used to expel nitrogen gas from LN manifold.
| Bill Of Materials | Qty | Unit | Total | Notes |
| duct, flexible aluminum 4 in | 21 | in | 2.94 | |
| labor assembly/fabrication (min) | 2 | min | 1.84 | |
| N2 duct sleeve retainer | 1 | ea | 14.73 | |
| polyester stockinette 4 in | 25 | in | 0.75 | |
| N2 duct | 1 | ea | 20.26 |
| Used on | Qty |
| LN phase separator | 1 |
| SMSEGL upgrade kit | 3 |