Pentair
Pentair System 3 Air Bleed Filter WC8-126Z – for Sta-Rite Filters
Pentair System 3 Air Bleed Filter
Replacement internal air bleed filter for compatible Sta-Rite System 3, Posi-Flo II PTM Series and DEP Series pool and spa filters.
Warranty Information
1-Year Manufacturer Warranty
Ultimate Pools is your first point of contact for compatibility verification, installation guidance, and warranty support.
The Pentair System 3 Air Bleed Filter (WC8-126Z), also identified as WC8126Z, is a replacement component designed for the internal air bleed assembly of compatible Sta-Rite pool and spa filtration systems. It is listed for System 3 Modular Media cartridge filters, System 3 sand filters, Posi-Flo II PTM Series cartridge filters and DEP Series filters.
The air bleed filter works with the filter's internal air bleed system to support the removal of trapped air during filtration. The existing component should be inspected during filter maintenance and replaced when damaged, obstructed or missing. Proper positioning of the internal air bleed tube and air bleed filter is important before returning the filtration system to operation.
Key Features
Designed for use with the internal air bleed assembly of compatible pool and spa filters.
Works with the filter's air bleed system to help manage trapped air during filtration.
Compatible with specified Sta-Rite System 3 cartridge and sand filter models.
Listed for Sta-Rite Posi-Flo II PTM Series cartridge filters PTM50, PTM70 and PTM100.
Also listed for specified Sta-Rite DEP Series filtration systems.
Suitable for replacing an existing air bleed filter that is damaged, obstructed or missing.
Compatibility & Fitment
Compatible with the following Sta-Rite filter models and series:
- Sta-Rite System 3 Modular Media SM Series Cartridge Filters: S7M120, S7M400, S8M150, S8M500
- Sta-Rite System 3 Sand Filters: S7S50, S8S70
- Sta-Rite Posi-Flo II PTM Series Cartridge Filters: PTM50, PTM70, PTM100
- Sta-Rite DEP Series Filters: DEP36, DEP36-1, DEP36-01B, DEPB36, DEPB36-1N, DEP51, DEP51-01, DEP51-01B, DEPB51, DEPB51-1N
Fitment Note: This is an internal air bleed filter, not the external manual air relief valve. Confirm that your existing filter requires part number WC8-126Z or WC8126Z, as different filtration systems may use different internal air bleed components.
Compatibility may vary by production year, configuration and installation. Verify your exact model and part number before ordering.
Applications
- Replacement of damaged or missing internal air bleed filters
- Sta-Rite System 3 Modular Media cartridge filter maintenance
- Sta-Rite System 3 sand filter servicing
- Sta-Rite Posi-Flo II PTM Series cartridge filter repairs
- Sta-Rite DEP Series filter maintenance
- Inspection and servicing of compatible internal air bleed assemblies
Confirm the correct air bleed filter part number before ordering. The internal air bleed tube and filter must be correctly positioned before operating the filtration system. Always shut down the equipment and relieve internal pressure before opening or servicing a pool filter.
Specifications
| SKU | WC8-126Z |
| Alternate SKU | WC8126Z |
| Brand | Pentair / Sta-Rite |
| Product Type | Internal Air Bleed Filter |
| Application | Internal air bleed assembly maintenance and replacement |
| Compatibility | Sta-Rite System 3 cartridge filters S7M120, S7M400, S8M150, S8M500; System 3 sand filters S7S50, S8S70; Posi-Flo II PTM50, PTM70, PTM100; and DEP Series models DEP36, DEP36-1, DEP36-01B, DEPB36, DEPB36-1N, DEP51, DEP51-01, DEP51-01B, DEPB51, DEPB51-1N. |
| Warranty | 1-Year Manufacturer Warranty |
| Final Sale | Yes |
Frequently Asked Questions
It is a component of the internal air bleed assembly in compatible Sta-Rite filters. It works with the internal air bleed system to help manage trapped air during filtration.
The listed cartridge filter models are S7M120, S7M400, S8M150 and S8M500. The listed sand filter models are S7S50 and S8S70.
Yes. It is listed for Posi-Flo II PTM50, PTM70 and PTM100 cartridge filters, as well as the specified DEP36 and DEP51 Series filter models. Confirm the exact part number before ordering.
Inspect the component during routine filter maintenance. Replacement may be necessary if it is damaged, obstructed or missing. Confirm that the internal air bleed tube and filter are correctly positioned before restarting the system.
The Pentair WC8-126Z includes a 1-year manufacturer warranty and is a final sale replacement part. Verify compatibility with your exact filter model before purchasing.
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