The Pentair 523747 LT25 Salt Chlorine Generator Cell is a replacement cell designed for use with Pentair IntelliSync and IntelliFlo3 systems. Rated for pools up to 25,000 gallons, this salt cell provides consistent and efficient chlorine production to help keep your pool water sanitized and crystal clear. This listing is for the replacement cell only and does not include the power center or control system.

Key Features:

• Compatible with IntelliSync and IntelliFlo3 control systems

• For residential pools up to 25,000 gallons

• Converts salt into chlorine for continuous, hands-free sanitation

• Compact and efficient design for easy integration

• Durable construction for long-lasting performance

• LED indicators for cell status and operation monitoring

• Ideal for replacing an existing LT25 salt cell

• Cell only – control system and power components sold separately

Product Overview:
The Pentair LT25 Salt Chlorine Generator Cell (Model 523747) is engineered for reliable chlorine production in pools up to 25,000 gallons. Designed for seamless compatibility with Pentair IntelliSync and IntelliFlo3 systems, this compact cell helps maintain clean and safe water without the hassle of traditional chlorine handling. Built for efficiency and durability, the LT25 cell is an excellent replacement option for existing systems or new installations requiring a separate control interface. This product includes the cell only; power and control components are not included.

Enjoy Cleaner, Clearer, and Silkier Pool Water

The leader in salt chlorine generators* now gives you even more. With new and improved modular designs, the IntelliChlor Plus & LT Salt Chlorine Generators provide more serviceability, accuracy, and value than Pentair’s first-generation IntelliChlor and iChlor® Salt Chlorine Generators.

• Provides an alternative to buying, handling, storing, and carrying chlorine.

• Drop-in replacement for existing Pentair salt chlorine generators, which requires no additional plumbing.

• Compatible with existing IntelliChlor Power Center and Pentair automation systems.

• Modular design enables simple replacements for electronics and sensors — over 50% faster sensor module replacement.**

• Redesigned conductivity sensor provides more accurate salt level readings — 98% as accurate as a laboratory-grade salinity meter.***

• Easy-to-read LCD/LED interface with 20+ built-in diagnostics and warnings.

• Acid cleaning kit provided with all units makes routine cleaning easier.

Key Features

• Supplied under part number 523747 for exact-match ordering.
• Output rated to a maximum pool volume — undersizing shortens cell life.
• Ships from our US warehouse with tracking on dispatch.

Specifications

• Brand: Pentair
• Manufacturer part number: 523747
• Category: Salt Chlorine Generators
• Condition: New
• UPC / GTIN: 788379918484
• Shipping weight: 3 lb

Frequently Asked Questions

What part number is this salt chlorine generator?

This item is supplied under part number 523747. Match that number against your equipment's parts diagram before ordering.

How long does a salt cell last?

Salt cells typically last three to seven years. Life depends on run hours, water temperature and keeping salt within the manufacturer's range. Low chlorine output at a correct salt reading usually means the plates are worn.

What salt level does the system need?

Most residential systems run between 3,000 and 3,500 ppm. Too little salt reduces output and stresses the cell; too much can trigger a fault and accelerate corrosion of nearby metal.

Can I use a salt system with any pool surface?

Salt systems work with most surfaces, but soft stone coping, untreated natural stone and some heater components are sensitive to salt. Confirm your heater has a cupro-nickel or compatible heat exchanger.

Why has chlorine output dropped?

The usual causes are a worn cell, scale on the plates, low salt, or cold water. Most systems reduce output below roughly 60F by design. Inspect the plates for white scale before replacing the cell.

How do I confirm this part fits my equipment?

Check the part number stamped on the component you are replacing, or find it on the parts schematic in your owner's manual. If the number differs or is unreadable, send us your equipment model and serial number and we will verify fitment before you order.

How quickly does this ship?

In-stock items ship from our US warehouse on business days. You will receive tracking by email once the order leaves the warehouse.

Can I return it if I ordered the wrong part?

Unopened, uninstalled items can be returned within 30 days. Equipment that has been installed or plumbed cannot be returned, so confirm fitment before installation.

Is this covered by a warranty?

Manufacturer warranty terms vary by brand and product. Warranty claims generally require proof of purchase and, on installed equipment, evidence of professional installation.