Stack of three heater controller cards with 18 total channels.
| Bill Of Materials | Qty | Unit | Total | Notes |
| heater controller stack +6ch | 2 | ea | 374.14 | |
| heater controller stack base | 1 | ea | 272.93 | |
| labor assembly/fabrication (min) | 3 | min | 2.76 | |
| screw 4-40 x 15/16 PH SS | 4 | ea | 4.96 | |
| heater controller stack 18 channel | 1 | ea | 654.79 |
| Used on | Qty |
| Control Section LL6x1+1i+6VP+RPO | 1 |
| Control Section 12x1+5+6AP+RPO | 1 |
| Control Section 12x1+5 | 1 |
| Control Section LL6 | 1 |