Product Overview
Connect compatible commercial pool pump plumbing with the Pentair 357212 EQ Series® 6-Inch Flange Kit. This genuine Pentair accessory is designed specifically for EQ Series commercial plastic pumps installed without a strainer pot.
The kit includes a 6-inch flange, gasket, and stainless steel hardware, providing the components needed for the designated flange connection. It is suitable for new installations, equipment replacement, and repairs where the existing flange assembly requires replacement.
Selecting the correct flange is especially important on EQ pumps without a strainer pot. Pentair notes that some standard aftermarket 6-inch flange adapters can interfere with the strainer-pot alignment lip on the pump housing. The 357212 kit is specified for this application, helping installers avoid that fitment issue.
Important Compatibility Notice: “Without strainer pot” describes the pump configuration this kit fits. The kit does not include a pump, strainer pot, or basket. Confirm the pump model and connection requirements before ordering.
Key Features
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Genuine Pentair accessory: Designed for supported EQ Series pump applications.
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6-inch flange connection: For the designated connection on compatible pumps.
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For pumps without a strainer pot: Application-specific fitment for EQ installations.
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Gasket included: Provides the sealing component between properly aligned flange surfaces.
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Stainless steel hardware included: Supplies corrosion-resistant fastening components.
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Commercial pool application: Suitable for compatible commercial circulation systems.
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Installation and repair use: Replace an existing flange assembly or equip a supported new installation.
Specifications
| Specification | Details |
|---|---|
| Manufacturer | Pentair |
| Manufacturer Part Number | 357212 |
| UPC / Barcode | 788379776527 |
| Product Type | Flange assembly kit |
| Pump Series | EQ Series® |
| Nominal Flange Size | 6 inches |
| Intended Configuration | EQ commercial plastic pump without strainer pot |
| Included Components | Flange, gasket, and stainless steel hardware |
| Strainer Pot Included | No |
| Complete Pump Included | No |
Compatibility and Selection
| Application | Fitment Guidance |
|---|---|
| Pentair EQ Series pump without strainer pot | Intended application; verify the exact pump configuration |
| EQ pump equipped with a strainer pot | Confirm the appropriate connection kit separately |
| Other pump brands or series | Compatibility is not established by flange size alone |
The 6-inch designation identifies the nominal connection size. It does not describe the flange’s overall outside diameter. Verify the mating flange, piping arrangement, and pump-side connection before installation.
Installation and Replacement Guidance
Installation should be completed by a qualified commercial pool professional. Before disassembly, shut down the circulation system, isolate the equipment, and relieve system pressure.
Inspect mating surfaces for damage, position the gasket correctly, and align the piping before tightening. Follow Pentair’s installation instructions and applicable flange requirements for hardware placement and tightening.
Piping must be independently supported so its weight and alignment forces are not transferred to the pump housing. Excessive tightening or unsupported piping can damage flange connections.
After installation, check for leaks and verify normal system operation before returning the equipment to service.
Frequently Asked Questions
Does this kit include the gasket and hardware?
Yes. It includes the flange, gasket, and stainless steel hardware.
Does it include a strainer pot?
No. This kit is designed for EQ pumps configured without a strainer pot.
Will any 6-inch flange adapter work instead?
Not necessarily. Pentair identifies potential interference between some aftermarket adapters and the pump housing’s alignment lip.
Can I use it on another pump series?
Only if compatibility is specifically confirmed. Matching nominal size alone is insufficient.
Is this a complete pump?
No. It is a flange connection accessory kit.
Warranty
Manufacturer warranty coverage is subject to Pentair’s applicable accessory or replacement-part terms, installation requirements, and proof of purchase.