By Pentair Pool Products


Recommended Alternatives

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Part # EC-520555

Warranty Ecommerce (EC) products: Products purchased from an Authorized Pentair Online Reseller (products beginning with EC-) receive a one (1) year (parts only) warranty from the date of purchase. The exceptions are: IntelliChlor cells and IntelliFlo SVRS pumps which receive a two (2) year warranty. EC products are not eligible for the bundled three (3) year extended warranty.

Dimensions 12-1/2" X 5-3/8"

Alternate Part #'s 520555, PAC-45-0555, 43-102-1320, EC520555, PAC-45-1555, PENEC520555, PENEC523735

Product Description

Pentair® IntelliChlor® IC40 Salt Cell – EC-520555 (Discontinued)

Replaced by Part # 523735-EC

Electrolytic Chlorine Generation – Automatic & Convenient
⚠️ This Model is Discontinued – Order 523735-EC Instead
Not for Pools Larger than 40,000 Gallons

Key Features

✅ Designed for pools up to 40,000 gallons
✅ Uses common table salt to generate chlorine directly in the pool
✅ Eliminates storing, handling, and transporting liquid or tablet chlorine
✅ Helps reduce red eyes, skin irritation, and chemical odors
✅ Titanium electrode plates with ruthenium oxide coating
✅ Rated for 10,000+ hours of operation (approx. 5 years under normal conditions)
✅ Control electronics isolated from high-heat components for extended life

System Compatibility

✅ Works with Pentair® IntelliChlor® Power Centers
✅ Direct replacement for IC40 cells (EC-520555)
⚠️ Discontinued – replaced by IntelliChlor® Plus40 (523735-EC)
❌ Not compatible with non-Pentair® salt chlorination systems

Recommended Accessories

⚠️ Pentair® IntelliChlor® Power Center – required if not already installed
⚠️ Union Kit & O-Rings – replace if worn for proper installation
❌ Using non-OEM cells may cause incorrect chlorine output and void warranty

What’s Included

✅ 1 x IntelliChlor® IC40 Salt Cell (EC-520555 – discontinued)
⚠️ For replacement, order IntelliChlor® 523735-EC

Tech Tips

  • Maintain Salt Level: Keep pool salinity between 3000–4500 ppm.

  • ⚠️ Clean Cell Plates Periodically: Use mild acid solution to remove scale buildup.

  • Size Up When Possible: Larger cells last longer by running at lower output % on smaller pools.

  • Do Not Over-Clean: Excess acid washing shortens electrode lifespan.

Features:
- 15' Cord Length
- Three LED Salt Level Indicators
- Two-color Status Displays
- Five Sanitizer Output Levels with Two-button Control

Two Models Available:
IntelliChlor IC 20
IntelliChlor IC 40

Click here for more Intellichlor

Product Specifications

Manufacturer:
Pentair
Pool Type:
In Ground
Gallons:
Up to 40,000 gal.
Type:
IC40
Model:
Intellichlor
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?     Asked on 7/1/2009by Guest

What is the Pentair Intellichlor Dummy Cell used for?
 Reply

A  Answered on 7/1/2009 by InyoPools Product Specialist Patrick P.

The Dummy cell is basically a cell with no internal parts, this cell is used during cleaning of the real cell. So when you remove the real cell for cleaning you would put the dummy cell in place of the real cell. After you have finished cleaning the real cell you would remove the dummy cell from the plumbing and place the real cell back in place. You may view or purchase the Dummy Cell here >http://www.inyopools.com/Products/03500001032551.htm
 Reply


?     Asked on 1/31/2012by Guest

I need an Intellichlor replacement cell and the 15' plug that goes between the cell and the control box, Does this come with both?
 Reply

A  Answered on 1/31/2012 by InyoPools Product Specialist Patrick P.

Yes, this item comes with both the replacement salt cell and the cell power cord.
 Reply


?     Asked on 9/25/2014by Guest

What is the warranty on the intellichlor if I install it myself?
 Reply

A  Answered on 9/25/2014 by InyoPools Product Specialist Patrick P.

According to an update we received 10/1/13 from Pentair, a self-installed replacement salt cell will have a 60-day warranty.
 Reply


?     Asked on 5/13/2015by Inyo Visitor

will the ic40 cell work in my generator which was purchased and installed in 2007? the cell is definetly shot - my pool people quoted me $1200.for replacement with 60 day warranty. Wondering which route to take> thank you!! how long is delivery if I order from you?
 Reply

A  Answered on 5/13/2015 by InyoPools Product Specialist Lennox H.

Yes the IC40 replacement cell will work with your existing power supply and it comes with a one (1) year warranty. We can have it to you within 7 business days with ground shipping depending on where in the continental USA you're located.
 Reply


?     Asked on 6/3/2015by Donevon Smith

What is the warranty
 Reply

A  Answered on 6/3/2015 by InyoPools Product Specialist Joe S.

Hi Denevon warranty for this unit is 1 year
 Reply


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Difficulty

Est. Repair Time

Less than 1 hr

Tools Needed

pick for the o-rings

4     0

Nasty green lagoon to back yard oasis. (salt generator)

Written on 3/24/2024 by Guest

opened the breaker, unplugged salt generator from power supply, unscrewed salt generator, put new rings on the old fittings, screwed in new generator, plugged in new generator, closed breaker. vacuumed the pool, that was the hard part. Magic happens. green to clear blue in 3 days.
I had a flow error so I replaced the flow switch a few weeks earlier but it didn't clear the alarm.
Thanks inyo folks!

Were these instructions helpful? 
 

Difficulty

Est. Repair Time

1 to 2 hrs

Tools Needed

Screwdriver, Nut Drivers, Pliers, Wrench Set, wire cutters

5     1

Broken salt cell IC 40, bought new one installed in ten minutes, plugged it in didn’t light up,

Written on 3/22/2022 by Guest

Tested the power box that was burnt too. Ordered a new one and installed in one hour. Everything works fine.

Were these instructions helpful? 
 

Difficulty

Est. Repair Time

Less than 1 hr

Tools Needed

Screwdriver, hacksaw

4     1

Replacing old salt system

Written on 10/15/2021 by Guest

The video tutorials made replacing my old salt system with this new Pentair unit a breeze. Excellent product and customer service.

Were these instructions helpful? 
 

Difficulty

Est. Repair Time

Less than 1 hr

Tools Needed

Screwdriver

5     1

Hurricane Irma damaged our Intellichlor from wind and water damage

Written on 3/19/2018 by Cora M.

We ended up replacing it with Inyo pools and were very pleased.

Were these instructions helpful? 
 

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