| 1 | Vent triggerguided plunger | 2 |
| 2 | Crossbar with stops | 2 |
| 3 | Upper valvebrass sleeve, spring poppet | 2 |
| 4 | Trapped air | – |
| 5 | Cylinderopen-bottom bell | 2 |
| 6 | Chamber tubeacrylic, 4″ ID × 5′ | 2 |
| 7 | Outer tankacrylic, water-filled | 1 |
| 8 | Trip plate | 2 |
| 9 | Fill nozzle | 2 |
| 10 | Lower valvenormally closed | 2 |
| 11 | Pull rodfrom trip plate | 2 |
| 12 | Regulator | 1 |
| 13 | Reservoir | 1 |
| 14 | Pump | 1 |
| 15 | Base plate | 1 |
| 16 | Lever2 : 1 | 2 |
| 17 | Pivot bracket | 2 |
| 18 | Push rodto vent trigger | 2 |
| 19 | Overhead beamon tank rim | 1 |