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 Meet the New IntelliChlor Plus40

Meet the New IntelliChlor Plus40

Published by Cam on 07/27/2026

Posted in: Saltwater Systems

If you've been searching for the Pentair IntelliChlor IC40 Salt Chlorinator Cell (520555), you may have noticed it's becoming harder to find. That's because Pentair has transitioned away from the IntelliChlor IC40, replacing it with the new IntelliChlor® Plus40 (523735) as its next-generation salt chlorine generator.

While it can be frustrating to learn that a trusted product is no longer available, the good news is that Pentair designed the IntelliChlor Plus40 to be the natural successor to the IC40. It delivers the same dependable salt chlorination that pool owners have come to expect, while introducing updated technology, enhanced diagnostics, and improved compatibility with modern Pentair automation systems.

Why Did Pentair Replace the IntelliChlor IC40?

As pool technology continues to evolve, manufacturers periodically update their product lines to improve performance and simplify long-term support. Pentair has done just that with the introduction of the IntelliChlor Plus Series.

Rather than continuing production of the legacy IC40, Pentair now recommends the IntelliChlor Plus40 (523735) for pools that previously used the IC40. The Plus Series builds on the proven IntelliChlor platform while incorporating new features designed to enhance the user experience.

What Makes the IntelliChlor Plus40 Different?

The Pentair IntelliChlor Plus40 is designed for residential pools up to 40,000 gallons, just like the original IC40. It uses ordinary pool salt to automatically generate chlorine, helping maintain consistently clean, clear water while reducing the need to handle traditional chlorine products.

According to Pentair, the IntelliChlor Plus40 offers several enhancements over previous models, including:

  • Enhanced onboard diagnostics for easier system monitoring
  • Improved communication with compatible Pentair automation systems
  • Real-time cell life tracking
  • Reliable chlorine production using dissolved pool salt
  • Genuine Pentair quality backed by factory engineering and support

These updates help pool owners better monitor system performance while continuing to enjoy the convenience of automated chlorine generation.

Is the IntelliChlor Plus40 Compatible with My Pool?

For most existing IntelliChlor IC40 owners, yes.

Pentair designed the IntelliChlor Plus40 to replace the discontinued IC40. However, because the housing has been updated, some installations may require minor plumbing adjustments depending on your equipment pad and available space. If you're replacing an older cell, it's always a good idea to verify compatibility before purchasing.

Why Upgrade to the New Model?

Replacing a salt cell is part of normal pool ownership, and when it's time for a new one, upgrading to Pentair's latest technology makes sense.

The IntelliChlor Plus40 allows you to continue enjoying the benefits of a saltwater pool, including:

  • Softer-feeling water
  • Consistent chlorine production
  • Reduced handling and storage of traditional chlorine
  • Lower day-to-day maintenance
  • Seamless integration with many Pentair pool systems

By moving to the newest generation of IntelliChlor technology, you'll also benefit from Pentair's latest engineering improvements and ongoing product support.

Ready to Replace Your IntelliChlor IC40?

If your Pentair IntelliChlor IC40 has reached the end of its service life, the Pentair IntelliChlor Plus40 is Pentair's recommended replacement. It delivers the same dependable salt chlorination you expect while adding updated diagnostics and modern technology designed for today's pool systems. 

Pick one up today! Get a custom quote by calling us at 877-209-7773.