Stack of valves that controls flow of air to graphite reactors.
| Bill Of Materials | Qty | Unit | Total | Notes |
| AVP-31 stacking hardware kit | 8 | ea | 33.04 | |
| labor assembly/fabrication (min) | 30 | min | 27.60 | |
| solenoid valve air 120 VAC | 9 | ea | 345.24 | |
| solenoid valve stack (9) | 1 | ea | 405.88 |
| Used on | Qty |
| air manifold 9 port | 1 |