Pentair
Pentair Sta-Rite Union O-Ring U9-362Z – for System 3 Filters & IntelliPro Pumps
Pentair Sta-Rite Union O-Ring
Replacement Buna-N union sealing O-ring for compatible Sta-Rite System 3 cartridge and D.E. filters and Pentair IntelliPro VS pumps.
Warranty Information
1-Year Manufacturer Warranty
Ultimate Pools is your first point of contact for compatibility verification, installation guidance, and warranty support.
The Pentair Sta-Rite Union O-Ring (U9-362Z) is a replacement sealing gasket designed for union connections on compatible Sta-Rite System 3 filtration systems and Pentair IntelliPro VS pumps. It is listed for System 3 Modular Media cartridge filters S7M120, S7M400, S8M150 and S8M500, as well as System 3 SD Series D.E. filters S7D75 and S8D110.
Manufactured from Buna-N (nitrile rubber) with a specified hardness of 70 Shore, this O-ring creates a seal between mating surfaces at compatible union connections. Replacing a worn, compressed, cracked or damaged O-ring helps restore the sealing function of the connection and reduce water leakage during equipment operation.
Key Features
Designed to create a seal between mating surfaces at compatible pool filter and pump union connections.
Manufactured from nitrile rubber with a specified hardness rating of 70 Shore.
Provides a sealing barrier at the union connection when correctly installed.
Fits specified Sta-Rite System 3 Modular Media cartridge filters, including S7M120, S7M400, S8M150 and S8M500.
Also listed for Sta-Rite System 3 SD Series D.E. filters and compatible Pentair IntelliPro VS pumps.
Suitable for replacing an existing union O-ring that is worn, damaged or no longer sealing correctly.
Compatibility & Fitment
Compatible with the following Sta-Rite and Pentair filter and pump models:
- Sta-Rite System 3 Modular Media SM Series Cartridge Filters: S7M120, S7M400, S8M150, S8M500
- Sta-Rite System 3 SD Series D.E. Filters: S7D75, S8D110
- Pentair IntelliPro VS Pumps: Compatible models requiring union O-ring U9-362Z; exact pump model numbers not specified
Fitment Note: This O-ring is designed for specified union connections. Confirm that your existing filter or pump union requires part number U9-362Z, as different union sizes and connection locations may use different O-rings.
Compatibility may vary by production year, configuration and installation. Verify your exact model and part number before ordering.
Applications
- Replacement of worn or damaged filter union O-rings
- Sealing compatible Sta-Rite System 3 cartridge filter union connections
- Sta-Rite System 3 SD Series D.E. filter servicing
- Replacement of compatible Pentair IntelliPro VS pump union seals
- Addressing water leakage at compatible union connections
- Routine pool filter and pump seal inspection and replacement
Inspect the existing O-ring and union sealing surfaces during maintenance. Confirm the required part number and connection location before ordering. Shut down the equipment and relieve system pressure before disconnecting any union fittings.
Specifications
| SKU | U9-362Z |
| Brand | Pentair / Sta-Rite |
| Product Type | Union O-Ring |
| Material | Buna-N (Nitrile Rubber) |
| Hardness Rating | 70 Shore |
| Application | Union connection sealing for compatible pool filters and pumps |
| Compatibility | Sta-Rite System 3 cartridge filters S7M120, S7M400, S8M150 and S8M500; System 3 SD Series D.E. filters S7D75 and S8D110; compatible Pentair IntelliPro VS pumps. Verify exact pump model and union fitment. |
| Warranty | 1-Year Manufacturer Warranty |
| Final Sale | Yes |
Frequently Asked Questions
It is a replacement sealing O-ring for specified union connections on compatible Sta-Rite System 3 filters and Pentair IntelliPro VS pumps. It helps prevent water leakage at the connection.
The listed compatible cartridge filter models are S7M120, S7M400, S8M150 and S8M500.
Yes. It is listed for System 3 SD Series D.E. filter models S7D75 and S8D110, as well as compatible Pentair IntelliPro VS pumps. Exact IntelliPro VS pump model numbers should be verified before ordering.
The supplied specifications identify Buna-N (nitrile rubber) construction with a hardness rating of 70 Shore. Replace the O-ring if it is cracked, compressed, damaged or no longer sealing correctly.
The Pentair U9-362Z includes a 1-year manufacturer warranty and is a final sale replacement part. Verify your exact equipment model and union O-ring part number before purchasing.
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