Pentair
Pentair 2" Half Union Adapter Package (2-Pack) PKG188Z – for MasterTemp, Max-E-Therm & System 3
Pentair 2" Half Union Adapter Package - 2-Pack
Replacement half union adapter package for compatible Pentair MasterTemp heaters, Sta-Rite Max-E-Therm heaters and System 3 cartridge 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 2" Half Union Adapter Package (PKG188Z) is a replacement plumbing connection kit for compatible Pentair and Sta-Rite pool equipment. It is designed for specified MasterTemp heaters, Max-E-Therm heaters and Sta-Rite System 3 cartridge filters.
The package includes two half unions with gaskets, providing serviceable 2" plumbing connections for compatible equipment. The union design allows connected equipment to be disconnected during servicing or maintenance without replacing the complete plumbing connection.
Key Features
Designed for compatible Pentair and Sta-Rite equipment using the supported 2" union connection.
Includes two replacement half union adapters.
Each package includes the gaskets required for the supplied half union connections.
Fits specified Pentair MasterTemp heater models.
Compatible with specified Sta-Rite Max-E-Therm heater models.
Also fits specified Sta-Rite System 3 cartridge filter models.
Compatibility & Fitment
Compatible with the following Pentair and Sta-Rite equipment models:
- Pentair MasterTemp Heaters: 460792, 460793, 460730, 460731, 460732, 460733, 460734, 460735, 460736, 460737, 460805, 460806
- Sta-Rite Max-E-Therm Heaters: SR200NA, SR200HD, SR200LP, SR333NA, SR333HD, SR333LP, SR400NA, SR400HD, SR400LP
- Sta-Rite System 3 Cartridge Filters: S7M120, S7M400, S8M150, S8M500
Compatibility may vary by production year, configuration and installation. Verify your exact model and part number before ordering.
Applications
- Replacement of compatible heater half union connections
- Pentair MasterTemp heater plumbing service
- Sta-Rite Max-E-Therm heater plumbing service
- Sta-Rite System 3 cartridge filter plumbing service
- Replacement of existing half union adapters and gaskets
Confirm the equipment model and existing union connection before ordering to ensure correct fitment.
Specifications
| SKU | PKG188Z |
| Brand | Pentair / Sta-Rite |
| Product Type | Half Union Adapter Kit |
| Connection Size | 2" |
| Included Components | 2 Half Unions with Gaskets |
| Application | Serviceable plumbing connection for compatible heaters and filters |
| Compatibility | Selected Pentair MasterTemp heaters, Sta-Rite Max-E-Therm heaters and Sta-Rite System 3 S7M120/S7M400/S8M150/S8M500 cartridge filters |
| Warranty | 1-Year Manufacturer Warranty |
| Final Sale | Yes |
Frequently Asked Questions
The package includes two 2" half unions with gaskets.
Yes. It is compatible with the specified MasterTemp heater model numbers listed in the Compatibility & Fitment section.
Yes. Compatible models include the listed SR200, SR333 and SR400 natural gas, HD and propane variants.
Yes. It is compatible with Sta-Rite S7M120, S7M400, S8M150 and S8M500 System 3 cartridge filters.
Yes. This replacement union package is final sale, so verify the equipment model and union connection before ordering.
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