Pentair Sand Lower Plumbing Rebuild Kit for Sta-Rite System:3 SS-Series Sand Filter S8S70 | 25021-2025
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- SKU:
- 25021-2025
-
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About This Item
Poolaroo Notes
Our own notes about this product — insights from us and our customers.
OEM Sand Conversion Kit for the Sta-Rite System:3 S8S70 Sand Filter
The Pentair 25021-2025 is the OEM Sand Rebuild Kit for the Sta-Rite® System:3® SS-Series Sand Filter, model S8S70. If you are converting or rebuilding the internal sand filter assembly on this specific model, this is the factory-matched kit. This is ONLY for the S8S70 filter - the S7S50 filter uses conversion kit 25021-2021.
⚠️ IMPORTANT: THIS LISTING IS A KIT — NOT A SINGLE PART
The 25021-2025 is a complete Sand Conversion Kit. Verify the contents of this kit against your filter's service documentation before ordering to confirm all required components are included.
This kit provides the components needed to convert or restore the sand filtration system within the Sta-Rite System:3 S8S70. Using the OEM-matched kit ensures correct fit and function within the filter's internal assembly. Always match the part number on your existing components or your filter's service manual before ordering.
Specifications
| Pentair Part Number | 25021-2025 |
| Also Known As | Sta-Rite 25021-2025 (Pentair legacy brand) |
| Part Type | Sand Conversion Kit |
| Quantity Included | Kit |
Pro Tip
Before ordering, confirm the model number on your filter's label matches S8S70 exactly. The System:3 line includes multiple tank sizes and configurations — the 25021-2025 kit is specific to the S8S70 model. When in doubt, cross-reference the part number printed on your existing internal components against this SKU.
