Pentair
Pentair System 3 Air Bleed Tube 25021-0003 – for Sta-Rite Cartridge Filters
Pentair Sta-Rite System 3 Air Bleed Tube
28.5-inch replacement internal air bleed tube for Sta-Rite System 3 Modular Media cartridge filters, including S7M120, S7M400, S8M150 and S8M500.
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 Tube (25021-0003) is a replacement internal air bleed component designed for Sta-Rite System 3 Modular Media SM Series pool and spa cartridge filters. Measuring 28.5 inches (72.39 cm) in length, this tube is listed for filter models S7M120, S7M400, S8M150 and S8M500.
The air bleed tube forms part of the filter's internal air bleed system, which helps remove trapped air during filtration. Replacing a damaged, obstructed or missing tube helps restore the intended function of the internal air bleed assembly. Proper positioning of the tube and associated air bleed components is important before returning the filtration system to operation.
Key Features
Designed for use within the internal air bleed assembly of compatible Sta-Rite System 3 filters.
Specified tube length of 28.5 inches (72.39 cm) for the listed replacement application.
Works with the internal air bleed system to help remove trapped air from the filter during operation.
Compatible with specified Sta-Rite System 3 Modular Media cartridge filters.
Used to replace an existing air bleed tube that is damaged, worn or obstructed.
Can be inspected during filter servicing to identify damage, obstructions or incorrect positioning.
Compatibility & Fitment
Compatible with the following Sta-Rite System 3 filter models:
- Sta-Rite System 3 Modular Media SM Series Cartridge Filters: S7M120, S7M400, S8M150, S8M500
Fitment Note: This is the internal air bleed tube, measuring 28.5 inches in length. Confirm that your existing filter requires part number 25021-0003, as the air bleed tube and air bleed filter are separate components of the internal assembly. The tube should not be confused with the air bleed filter, part number WC8-126Z.
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 tubes
- Sta-Rite System 3 Modular Media cartridge filter maintenance
- Servicing internal air bleed assemblies on compatible System 3 filters
- Addressing obstructions or damage affecting the existing air bleed tube
- Routine inspection of internal filter components
Inspect the existing air bleed tube and associated components during filter servicing. Confirm the required part number and tube length before ordering. Always shut down the filtration system and relieve internal pressure before opening or servicing the filter.
Specifications
| SKU | 25021-0003 |
| Brand | Pentair / Sta-Rite |
| Product Type | Internal Air Bleed Tube |
| Length | 28.5 inches (72.39 cm) |
| Filter Series | Sta-Rite System 3 Modular Media SM Series |
| Application | Internal air bleed assembly maintenance and replacement |
| Compatibility | Sta-Rite System 3 Modular Media cartridge filters S7M120, S7M400, S8M150 and S8M500 |
| Warranty | 1-Year Manufacturer Warranty |
| Final Sale | Yes |
Frequently Asked Questions
It is part of the internal air bleed assembly in compatible Sta-Rite System 3 filters. The tube works with the air bleed system to help remove trapped air during filtration.
The listed compatible models are S7M120, S7M400, S8M150 and S8M500.
The supplied product specifications identify a tube length of 28.5 inches (72.39 cm). Confirm the required part number and length before ordering.
No. The internal air bleed tube and air bleed filter are separate components. This listing is for the air bleed tube, part number 25021-0003. The air bleed filter is identified separately as part number WC8-126Z.
The Pentair 25021-0003 includes a 1-year manufacturer warranty and is a final sale replacement part. Verify your exact filter model and required air bleed tube before purchasing.
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