Pentair union bundle (Qty.2) 520595

Key Benefits + Salt Cell Plumbing Fitment

• Pentair replacement union set for IntelliChlor salt chlorine generator plumbing
• Includes 2 union couplers, 2 union nuts, and 2 O-rings
• Complete two-union set for servicing both sides of a compatible IntelliChlor cell
• Standard replacement configuration uses 2-inch slip plumbing connections
• Designed to make IntelliChlor cell removal and reinstallation easier during service
• Identified by Pentair part number 520595
• Useful when existing union nuts, couplers, or O-rings are cracked, worn, damaged, or no longer sealing correctly
• Verify your IntelliChlor model and existing plumbing before ordering

Pentair catalogs 520595 as its IntelliChlor replacement union set containing two O-rings, two couplers, and two nuts. Current Pentair documentation identifies IntelliChlor IC20, IC40, and IC60 cells as using 2-inch union plumbing.

Quick Product Summary

The Pentair IntelliChlor Replacement Union Kit 520595 provides the two plumbing unions used to connect compatible IntelliChlor salt chlorine generator cells to the pool circulation plumbing. The package contains two couplers, two union nuts, and two O-rings, allowing both cell connections to be serviced together. Current parts listings identify the standard 520595 unions with 2-inch slip plumbing connections.

This kit is especially useful when an existing union has cracked, the nut is damaged, an O-ring no longer seals correctly, or IntelliChlor plumbing is being repaired or replaced. Match part number 520595 and your existing cell plumbing before purchase.

Best For

• Pentair IntelliChlor salt chlorine generator systems
• IntelliChlor IC20 applications
• IntelliChlor IC40 applications
• IntelliChlor IC60 applications
• Replacing cracked or damaged union nuts
• Replacing worn union O-rings and couplers
• Salt-cell replacement or plumbing service requiring new unions

Pentair's IntelliChlor documentation identifies IC20, IC40, and IC60 as standard IntelliChlor cells, while the IC15 uses a separate reducer-union configuration when adapting to 1-1/2-inch plumbing.

Why This Matters

• Replaces both IntelliChlor plumbing unions as one matched set
• Helps restore a proper connection between the salt cell and pool plumbing
• Allows the cell to remain removable for inspection and maintenance
• Includes the sealing O-rings needed at the union connections
• Helps avoid reusing cracked or damaged union components
• Exact 520595 identification simplifies replacement-part selection

Common Signs You Need This / Use This When

• An existing IntelliChlor union nut is cracked
• A union coupler has been damaged during plumbing work
• An existing union connection no longer seals properly
• The union O-ring is worn or damaged
• IntelliChlor plumbing is being rebuilt or replaced
• Your Pentair parts information specifies 520595
• You need a complete two-union replacement set rather than a single component

Product Specifications

Pentair's catalog confirms the 520595 contents, and current pool-parts documentation identifies the standard union configuration as 2-inch buttress-thread to 2-inch slip. The supplied UPC 788379712730 is also corroborated by current distribution records.

Compatibility / Fitment Notes

Pentair 520595 is the replacement union set associated with the IntelliChlor salt chlorine generator family. It is commonly used with the standard IC20, IC40, and IC60 IntelliChlor cells.

The IC15 deserves special attention. Pentair separately catalogs part 521495 as the IC15 replacement reducer-union set for adapting 2-inch connections to 1-1/2-inch plumbing. Do not automatically substitute 520595 when an IC15 installation requires that reducer configuration.

Pentair's newer IntelliChlor Plus and LT systems use the same union thread dimensions as existing IntelliChlor/iChlor generators, but verify the current parts documentation before purchasing 520595 specifically for a newer Plus or LT installation.

Installation / Use Notes

Confirm part number 520595 and the existing plumbing configuration before installation. Shut down the pool circulation system and safely relieve system pressure before servicing the salt cell or plumbing.

Replace the union components according to applicable Pentair instructions, making sure the O-rings are clean, correctly seated, and undamaged before the unions are secured. If the 2-inch slip couplers require new PVC plumbing work, follow the applicable plumbing-product instructions or use a qualified pool professional.

Buy with Confidence

Benchmark Pool Supply helps pool owners and service professionals identify replacement parts by manufacturer, equipment line, part number, and plumbing application. Pentair 520595 is clearly identified as an IntelliChlor replacement union set, making it easier to replace damaged plumbing components without guessing at generic union sizes.

Matching the cell model, plumbing configuration, and 520595 part number before ordering helps reduce wrong-part purchases and unnecessary installation problems.