Stack of three heater controller cards with 18 total channels.
| Bill Of Materials | Qty | Unit | Total | Notes |
| heater controller stack +6ch | 2 | ea | 350.86 | |
| heater controller stack base | 1 | ea | 253.81 | |
| labor assembly/fabrication (min) | 3 | min | 2.76 | |
| screw 4-40 x 15/16 PH SS | 4 | ea | 5.04 | |
| heater controller stack 18 channel | 1 | ea | 612.47 |
| Used on | Qty |
| Control Section 12x1+5+6AP+RPO | 1 |
| Control Section 12x1+5 | 1 |