Washer, Pentair PacFab, 3/8″ | 154418
$2.28
| Manufacturer part number | 154418 |
| UPC (GTIN) | 788379694135 |
| Returns | 30-day returns – see our returns policy |
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Exploded parts diagrams: This part is shown as item #6 on the Cartridge Filter, Pentair PacFab, Mytilus 60, 80, 100; item #5 on the Cartridge Filter, Pentair PacFab, Mytilus B; item #10 on the Cartridge Filter, Pentair PacFab, Mytilus-FMY; item #7 on the Sand Filter, Pentair/PacFab, Triton II TR40,50,60,100,140 exploded parts diagrams.
🔧 Cartridge Filter, Pentair PacFab, Mytilus 60, 80, 100 – exploded parts diagram
The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Bulkhead Wrench, Pentair PacFab Mytilus |
| 34 | Drain Assembly, Pentair PacFab Mytilus, 3/4" |
| 32 | Drain Plug, Pentair PacFab Mytilus, 3/4" |
| 31 | Pipe Assembly, Pentair PacFab Mytilus, Lower |
| 30 | Tank Base, Pentair PacFab Mytilus |
| 29 | 16-110-W011K29 |
| 28 | Adapter, Pentair PacFab, 2" |
| 27 | O-Ring, 2-3/8" ID, 3/16" Cross Section, Generic |
| 26 | Diffuser, Pentair PacFab Mytilus/Mitra, Bulkhead |
| 25 | 16-110-W011K25 |
| 24 | External Spacer, Pentair PacFab Mytilus/Mitra, 2", Bulkhead |
| 23 | O-Ring, 2-5/8" ID, 3/16" Cross Section, Generic |
| 22 | Internal Spacer, Pentair PacFab Mytilus/Mitra, 2", Bulkhead |
| 21 | 16-110-W011K21 |
| 20 | Clamp Knob, Pentair PacFab, Pump/Filter, 5/16-18 |
| 19 | Washer, Pentair PacFab, Pump/Filter, 5/16" |
| 17 | Bolt, Pentair PacFab, Pump/Filter, 5/16-18 x 4-1/4" |
| 16 | 16-110-W011K16 |
| 15 | 16-110-W011D15 |
| 14c | 16-110-W011K14C |
| 14b | 16-110-W011K14B |
| 14a | 16-110-W011K14A |
| 13 | Cartridge Adapter, Pentair PacFab Mytilus/Mitra, 2 required |
| 12 | 16-110-W011K12 |
| 11 | O-Ring, PentairPacFab Mytilus/Star, 12" Tank Body, O-99P |
| 10 | Strainer Assembly, Pentair PacFab Mytilus/Mitra |
| 9 | 16-110-W011K9 |
| 8 | Nut, Pentair PacFab, 3/8-16 |
| 6 | Washer, Pentair PacFab, 3/8" ◀ this part |
| 5 | O-Ring, 7/16" ID, 3/32" Cross Section, Generic |
| 4 | 16-110-W011K4 |
| 3 | Clamp Ring, Pentair PacFab Mytilus/ST |
| 2 | 16-110-W011K2 |
| 1 | 16-110-W011K1 |
🔧 Exploded diagram and parts
This part belongs to the Cartridge Filter, Pentair PacFab, Mytilus 60, 80, 100 assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
| No. | Part | Our part number | Availability | |
|---|---|---|---|---|
| 1 |  |
Pressure Gauge, Pentair, 1/4"mpt, 0-60psi, Back Mount | 190059Z | 28 in stock |
| 1 |  |
Pressure Gauge, Pentair, 1/4"mpt, 0-60psi, Back Mount | 190059 | Available to order |
| 2 |  |
Air Bleed Tee, Pentair Sta-Rite/PacFab | 154689Z | 35 in stock |
| 2 |  |
Air Relief Assembly, Pentair PacFab Triton II | 154687 | Available to order |
| 2 |  |
Air Relief Assembly, Pentair Triton II | 154687Z | 20 in stock |
| 11 |  |
O-Ring, PentairPacFab Mytilus/Star, 12" Tank Body, O-99P | 174704 | Available to order |
| 21 |  |
Internal Locknut, Pentair, 2" | 154412Z | 7 in stock |
| 21 |  |
Internal Locknut, Pentair Purex PacFab, 2" | 154412 | Available to order |
| 25 |  |
Gasket, Pentair Mytilus/Mitra, Bulkhead, 2-3/8"ID, 3"OD | 154538 | Available to order |
| 28 |  |
Adapter, Pentair PacFab, 2" | 274404 | Available to order |
| 29 |  |
Bulkhead Adapter Nut, Pentair, 3-1/2", White | 274407Z | Available to order |
| 29 |  |
Adapter Nut, Pentair PacFab, 3-1/2" | 274407 | Available to order |
Complete bulkhead wrenchs
| Part | Our part number | Availability | |
|---|---|---|---|
 |
Bulkhead Wrench, Pentair PacFab Mytilus | 197082 | 4 in stock |
| Inside Diameter | 3/8" |
|---|---|
| Outside Diameter | 1" |
| Thickness | 1/16" |
| Washer Material | Stainless Steel |
| H Part# | 17-110-1482 |