Product Overview

The Pentair 357262 4" Flange Assembly Kit is a genuine OEM replacement flange kit designed for select Pentair commercial pool and spa pumps. This kit includes the 4" flange, matching gasket, and stainless steel hardware needed to help restore a secure, leak-resistant pump connection during commercial pump installation, repair, or replacement.

This flange kit is commonly used with Pentair EQ Series, C-Series, Aurora, CSP, CCSP, 5CSP, and 5CCSP commercial pump applications.

Ideal For

Replacing or installing a 4" flange connection on compatible Pentair commercial pool and spa pumps.

Key Features

Genuine Pentair OEM replacement part

4" flange assembly kit

Includes matching gasket

Includes stainless steel hardware

Designed for select Pentair commercial pool and spa pumps

Compatible with EQ Series commercial plastic pumps

Compatible with C-Series commercial bronze pumps

Compatible with Aurora 340/410 Series pumps

Compatible with CSP, CCSP, 5CSP, and 5CCSP commercial pump series

Helps restore a tight, leak-resistant flange connection

Built for commercial pool equipment applications

Benefits

The Pentair 357262 flange kit provides the correct 4" connection hardware needed for compatible commercial pump installations. Replacing worn, corroded, missing, or damaged flange components helps prevent leaks, maintain proper system flow, and support a cleaner equipment pad installation.

Because this is an OEM Pentair kit, it is designed to match the intended pump connection and hardware requirements for compatible commercial pump series.

Specifications

What’s Included

• 4" flange assembly
• Matching flange gasket
• Stainless steel hardware

Warranty & Compatibility

Compatibility

Designed for select Pentair commercial pool and spa pumps, including:

• Pentair EQ Series commercial plastic pumps
• Pentair C-Series commercial bronze pumps
• Pentair Aurora 340/410 Series pumps
• Pentair CSP Series commercial pumps
• Pentair CCSP Series commercial pumps
• Pentair 5CSP Series commercial pumps
• Pentair 5CCSP Series commercial pumps

Always confirm pump model, connection size, flange style, plumbing layout, and parts diagram before ordering.

Confirm Before Ordering

• Pump model number
• Pump series
• Flange size: 4"
• Plumbing connection style
• Existing flange condition
• Gasket requirements
• Hardware requirements
• Whether one or multiple flange kits are needed for the installation

Customer-Facing Q&A

Q: What is Pentair part 357262?
A: Pentair 357262 is a 4" flange assembly kit with gasket and stainless steel hardware for select Pentair commercial pool and spa pumps.

Q: Does this kit include the gasket?
A: Yes. The matching gasket is included.

Q: Does this include hardware?
A: Yes. Stainless steel hardware is included.

Q: What pump series does this fit?
A: It is commonly listed for Pentair EQ Series, C-Series, Aurora 340/410, CSP, CCSP, 5CSP, and 5CCSP commercial pumps.

Q: Is this for residential pumps?
A: This kit is primarily for compatible Pentair commercial pump applications, not standard residential pool pumps.

Q: Is this an OEM Pentair part?
A: Yes. 357262 is a genuine Pentair OEM replacement flange assembly kit.

Q: Do I need one or two flange kits?
A: That depends on your pump and plumbing layout. Confirm how many flange connections are being replaced before ordering.