| Bill Of Materials | Qty | Unit | Total | Notes |
| ball holder | 4 | ea | 12.28 | |
| labor assembly/fabrication (min) | 5 | min | 4.60 | |
| labor machining (min) | 5 | min | 5.35 | |
| multi-ply wood sheet | 80 | sq in | 5.60 | |
| neoprene foam sheet 125 | 80 | sq in | 1.60 | |
| RV pump drip pan | 1 | ea | 16.28 | |
| tennis ball | 4 | ea | 5.36 | |
| roughing pump vibration isolator | 1 | ea | 51.07 |
| Used on | Qty |
| vacuum system, rotary vane | 1 |