Pentair 523735 IntelliChlor Plus40 Salt Chlorine Generator Cell

OEM Replacement Salt Cell for Existing IntelliChlor Systems

The IntelliChlor® Plus40 Salt Chlorine Generator Cell (523735 NON E-COM) is a genuine Pentair replacement salt cell designed for existing IntelliChlor Plus40 systems serving pools up to 40,000 gallons. This product is the salt cell only and is intended for homeowners or service professionals replacing a worn-out or failed Plus40 cell while retaining an existing IntelliChlor power center.

Salt cells are consumable components. Over time, mineral buildup, plate wear, and electrical fatigue reduce chlorine output. Replacing the cell restores proper chlorine generation without the need to replace the entire system—making this the correct choice when the power center and controls are still functional.

This is a pool-specific salt chlorine generator replacement cell, not a complete system and not an erosion-style chlorinator.

NON E-COM: What That Means

This Plus40 salt cell is designated NON E-COM, meaning it is not sold as part of a bundled system and does not include a power center or transformer.

Choose this product if:

• You already have a working IntelliChlor power center

• You are replacing an existing Plus40 salt cell

• Your system wiring and controls are intact

• You do not need a bundled kit

If your power center is damaged or outdated, a bundled system may be the better choice instead.

How the IntelliChlor Plus40 Salt Cell Works

The Plus40 salt cell uses electrolysis to convert dissolved salt (sodium chloride) into free chlorine as water passes through the cell housing. Low-voltage current energizes the internal plates, producing chlorine that immediately sanitizes the pool water.

This process provides:

• Continuous chlorine generation during pump operation

• Stable sanitizer levels

• Reduced manual chlorine dosing

• Less chemical handling

• Softer-feeling water

As chlorine is consumed by sunlight and swimmers, the system continues producing more—maintaining consistent sanitation automatically.

Salt chlorination components like this cell are core items in the Pool Salt Chlorine Generators Collection.

Designed for Pools up to 40,000 Gallons

The IntelliChlor Plus40 salt cell is engineered for residential swimming pools up to 40,000 gallons.

Ideal applications include:

• Medium-to-large residential pools

• Pools with moderate to high bather loads

• Pools with longer daily pump runtimes

• Warm-climate pools with higher chlorine demand

Proper sizing is critical. A correctly sized cell operates at lower output percentages, which helps extend cell life and maintain more consistent sanitation.

Sizing decisions should be coordinated with circulation equipment from the Pool Pumps Collection.

Signs It’s Time to Replace Your Plus40 Salt Cell

Salt cells gradually lose efficiency over time. Replace the cell if you notice:

• Low or inconsistent chlorine production

• “Cell life low” or similar system warnings

• Increased need for supplemental chlorine

• Visible scale buildup on plates that cannot be cleaned

• Cell age approaching typical service life

Replacing the salt cell often resolves chlorine issues without requiring changes to other equipment.

Self-Cleaning Cell Technology

The IntelliChlor Plus40 salt cell features automatic polarity reversal, which helps reduce calcium scale buildup on the plates.

Key benefits include:

• Reduced manual cleaning

• More consistent chlorine output

• Extended plate life

• Lower maintenance requirements

Even with self-cleaning technology, proper water balance is essential for optimal performance.

Water Chemistry Requirements

Maintaining balanced water chemistry is critical to salt cell longevity and performance.

Recommended considerations include:

• Salt level within Pentair guidelines

• Proper pH and alkalinity balance

• Correct calcium hardness

• Regular water testing

Poor chemistry can accelerate plate wear and shorten the life of the cell.

Water balance management often involves products from the Pool Equipment Collection.

Compatibility & System Requirements

This salt cell is designed specifically for IntelliChlor Plus40 systems and must be used with a compatible Pentair IntelliChlor power center.

Compatibility notes:

• Requires an IntelliChlor power center

• Compatible with Pentair IntelliChlor control architecture

• Not interchangeable with smaller or larger IntelliChlor models

• Not compatible with non-Pentair salt systems

Always confirm model compatibility before installation.

Installation Considerations

Replacing a Plus40 salt cell is straightforward when the existing system is intact.

General Replacement Overview:

1. Turn off power at the breaker

2. Disconnect the old salt cell

3. Remove the cell from the plumbing union

4. Install the new Plus40 cell

5. Reconnect cables and restore power

6. Verify system diagnostics

Professional installation is recommended for safety and proper system verification.

Consistent flow for salt systems depends on equipment found in the Pool Pumps Collection.

Why Replace the Cell Instead of the Whole System

When the power center is functioning properly, replacing only the salt cell is the most cost-effective solution.

Benefits include:

• Lower replacement cost

• Faster installation

• Retention of existing controls

• Minimal system downtime

This NON E-COM Plus40 cell is the correct choice when only the cell has reached end of life.

Pentair IntelliChlor Proven Reliability

Pentair IntelliChlor systems are among the most widely used salt chlorinators in the pool industry.

With the Plus40 replacement cell, Pentair delivers:

• OEM engineering and compatibility

• Proven electrolysis technology

• Integrated diagnostics support

• Broad service and parts availability

Using a genuine Pentair replacement cell ensures proper system operation and long-term reliability.

Buy with Confidence from Benchmark Pool Supply

At Benchmark Pool Supply, we stock genuine, pool-specific replacement salt cells selected for compatibility and performance. The IntelliChlor® Plus40 Salt Chlorine Generator Cell (523735 NON E-COM) is the correct solution for restoring chlorine production in an existing IntelliChlor Plus40 system.

When you purchase from Benchmark Pool Supply, you receive:

• Genuine Pentair equipment

• Clear compatibility guidance

• Fast shipping or convenient local pickup

• Support from knowledgeable pool professionals

We help you replace the right part the first time.