Exploded parts diagram: This part is shown as item #8 on the DE Filter, Pentair/PacFab, Star Polymeric ST35,40,50,80 exploded parts diagram.
🔧 DE Filter, Pentair/PacFab, Star Polymeric ST35,40,50,80 – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| 21 | 16-110-W045K21 |
| 35 | Pipe Wrench, Pentair PacFab ST |
| 34 | Retaining Ring, Pentair PacFab ST |
| 33 | Air Relief Strainer, Pentair PacFab ST |
| 32 | Tubing, Pentair PacFab ST, Air Relief, 1/4" |
| 31 | 16-110-W045K31 |
| 30 | Clamp Ring, Pentair PacFab Mytilus/ST |
| 29 | Outlet Pipe Assembly, Pentair PacFab ST, with Check Valve |
| 28 | 16-110-W045K28 |
| 27 | 16-110-W045K27 |
| 26 | Clamp Knob, Pentair PacFab, Pump/Filter, 5/16-18 |
| 25 | Washer, Pentair PacFab, Pump/Filter, 5/16" |
| 24 | Bolt, Pentair PacFab, Pump/Filter, 5/16-18 x 4-1/4" |
| 22 | 16-110-W045K22 |
| 20 | Check Valve, Pentair PacFab ST |
| 19 | Tank Base, Pentair PacFab Mytilus/ST |
| 18 | O-Ring, 3-1/2" ID, 3/16" Cross Section, Generic |
| 17 | O-Ring, 1-3/4" ID, 1/8" Cross Section, Generic |
| 16 | 16-110-W045K16 |
| 15 | 16-110-W045K15 |
| 14 | Retainer, Pentair PacFab ST |
| 13 | 16-110-W045K13 |
| 12 | O-Ring, PentairPacFab Mytilus/Star, 12" Tank Body, O-99P |
| 11 | Manifold, Pentair PacFab ST35/40/50 |
| 10 | 16-110-W045K10 |
| 9 | O-Ring, 7/8" ID, 1/8" Cross Section, Generic |
| 8 | Nut, Pentair PacFab ST, 1-7/8" ◀ this part |
| 7 | 16-110-W045K7 |
| 6 | 16-110-W045K6 |
| 5 | 16-110-W045K5 |
| 4 | Adapter, Pentair PacFab ST, Tank Lid |
| 3 | Air Bleed Screw, Pentair PacFab ST, Plastic |
| 2 | Engagement Shaft Knob, Pentair PacFab ST |
| 1 | Screw, Pentair PacFab ST, 12-1" |








