Exploded parts diagram: This part is shown as item #15 on the Cartridge Filter, Pentair Purex, DM exploded parts diagram.
🔧 Cartridge Filter, Pentair Purex, DM – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| 18 | 16-110-W027K18 |
| 17d | 16-110-W027D17D |
| 17c | 16-110-W027D17C |
| 17b | 16-110-W027D17B |
| 17a | 16-110-W027D17A |
| 17 | Lock Ring, Pentair Purex DM |
| 16 | 16-110-W027K16 |
| 15 | O-Ring, DM Filter, Tank Body, O-89 ◀ this part |
| 14 | Diffuser Inlet, Pentair Purex DM |
| 13 | 16-110-W027K13 |
| 12 | 16-110-W027K12 |
| 11 | O-Ring, 2-1/8"id, 1/8" Cross Section, Generic |
| 10 | 16-110-W027K10 |
| 9 | O-Ring, 1-1/16" ID, 1/8" Cross Section, Generic |
| 8 | Drain Knob, Pentair Purex DM |
| 7 | Tank Body, Pentair Purex DM |
| 6d | 16-110-W027K6D |
| 6c | 16-110-W027K6C |
| 6b | 16-110-W027K6B |
| 6a | 16-110-W027K6A |
| 6 | 16-110-W027K6 |
| 5 | 17-110-1429 |
| 4 | 17-110-1426 |
| 3 | 16-110-W027K3 |
| 2 | O-Ring, Pentair Purex DM, Air Relief |
| 1a | Air Relief, Pent Am Prod/Purex/PacFab, Manual, w/Gauge |
| 1 | Air Relief Knob, Pentair Purex DM |












