💧 O-Ring, PacFab/Pentair Challenger/Waterfall, Trap Lid, Square
Made by Pentair, manufacturer part number 152509Z. It is listed for the equipment shown below, so check the model on your own unit against that list. If your old part carries one of the cross-reference numbers further down, this is listed as its alternative.
📏 Specifications
| Specification | Value |
|---|---|
| Brand | Pentair |
| Manufacturer part number | 152509Z |
| Part Type | O-ring |
| Cross Section | 1/4″ |
| Inside Diameter | 8-5/8″id |
| Catalog description | O-Ring, PacFab/Pentair Challenger/Waterfall, Trap Lid, Square |
✅ Listed for
- Pent Triton C/HD TR100C/TR100HD/TR140C Rpl Part Sand Filter
- Pentair Triton C-3 Replacement Parts Sand Filter
- Pentair PacFab Challenger High Flow In-Ground Pump
🔄 Cross-reference part numbers
These part numbers are listed as alternatives for this part.
| Brand | Part number |
|---|---|
| PacFab/Pentair | 152509 |
Exploded parts diagram: This part is shown as item #33 on the Pentair PacFab WaterFall Pump AFP75,120,150,180&AF75,120,180 exploded parts diagram.
🔧 Pentair PacFab WaterFall Pump AFP75,120,150,180&AF75,120,180 – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Tool, Socket, Quad-Side A/Solar Side B |
| – | Tool, Clamp Knob Socket, 4-Lobe, w/1/4" Socket Bit Adapter |
| – | Pump, Waterfall, Pentair AFP-120, 115/230v, w/Strainer, 2" |
| 33 | O-Ring, PacFab/Pentair Challenger/Waterfall,Trap Lid,Square ◀ this part |
| 32 | Trap Lid, Pentair PacFab, Challenger/Waterfall, 5.0hp, Clear |
| 31 | 34-110-W027K31 |
| 29 | Bushing, Pentair PacFab Waterfall AF180, AFP150, AFP180 |
| 28 | 34-110-W027K28 |
| 27 | 34-110-W027K27 |
| 26 | 34-110-W027K26 |
| 25 | 34-110-W027K25 |
| 24 | O-Ring, 1/2" ID, 1/16" Cross Section, Generic |
| 23 | 34-110-W027K23 |
| 22 | Bolt, Pentair PacFab, Challenger/Waterfall, 5/16-18 |
| 21 | 34-110-W027K21 |
| 20 | 34-110-W027K20 |
| 19 | Washer, Pentair PacFab, Pump/Filter, 5/16" |
| 18 | Bolt, Pentair PacFab, Pump/Filter, 5/16-18 x 4-1/4" |
| 17 | 34-110-W027K17 |
| 15 | Screw, Pentair PacFab Challenger/Waterfall, Pump Stand |
| 14 | 34-110-W027K14 |
| 13 | O-Ring, 2-7/8" ID, 1/8" Cross Section, Generic |
| 12 | 34-110-W027K12 |
| 11b | Motor Support, Pentair PacFab Challenger |
| 11 | 34-110-W027K11 |
| 10 | 34-110-W027K10 |
| 9 | 34-110-W027K9 |
| 8 | 34-110-W027K8 |
| 7 | 34-110-W027K7 |
| 6 | 34-110-W027K6 |
| 5 | 34-110-W027K5 |
| 4 | 34-110-W027K4 |
| 3 | 34-110-W027K3 |
| 2 | 34-110-W027K2 |
| 1 | 34-110-W027K1 |
🔧 Exploded diagram and parts
This part belongs to the Pentair PacFab WaterFall Pump AFP75, 120, 150, 180&AF75, 120, 180 assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
Complete tools
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
![]() |
Tool, Clamp Knob Socket, 4-Lobe, w/1/4" Socket Bit Adapter | MT-501 | 1 in stock | $35.79 | Add to cart |
Parts that go with this
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
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Tool, Pool Tool, O-Ring Pick | 134 | 18 in stock | $11.23 | Add to cart |
![]() |
Silicone Based Lubricant 1oz 00150 | 00150 | 343 in stock | $5.26 | Add to cart |




































