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This item is eligible for return within 30 days of receipt
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Availability:
In Stock.
Arrives
Thursday, Nov 19
Recently Viewed
At a glance
- Condition
- New
- Style
- New
- Model
- EC-520555
- Weight
- 8.4 lb
- Item Form
- Device
- Item Type Name
- Salt-Chlorine Generator
Features 5
- For pools up to 40,000 gallons
- LED indicators and display on cell
- Push-button operation and easy-to-view displays enable fast checking of salt level, system status and chlorine output
- 2" union inlet and outlet connections for fast and easy cell replacement
- 15' cable, UL approved
Description
Pentair makes the most of life’s essential resources, from great tasting water straight from the kitchen faucet, to industrial water management and everywhere in between. We deliver solutions that help people move, improve and enjoy water, and sustainable applications that help ensure the health of the world. Crystal clear pool and spa water invites a healthy, active lifestyle. Pentair’s solutions are engineered to filter, and clean water, while automation equipment makes it all easy to control from anywhere so that you can truly enjoy your pool and spa. IntelliChlor uses common table salt to effectively and automatically produce chlorine a pool needs. It provides the same sanitation performance as chlorine additives without the drawbacks of chlorine handling. There’s now an alternative to handling and storing chlorine With IntelliChlor, you can choose from one of five levels. Just push the button, and you’re done. Plus, IntelliChlor provides an alternative to carrying, storing and handling chlorine. It also means fewer chlorine spills and bleached out bathing suits due to chlorine handling. Automatic shut-off feature protects the unit and prolongs cell life under low-water-temperature conditions.
Specs 12
| Brand | Pentair |
|---|---|
| Item Weight | 8.4 pounds |
| Item Form | Device |
| Product Benefits | An alternative to buying, handling and storing chlorine |
| Brand Name | Pentair |
| UPC | 789610109289 788379887537 |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Item Type Name | Salt-Chlorine Generator |
| Manufacturer | PENTAIR WATER POOL AND SPA, IN |
| Model Number | EC-520555 |
| Manufacturer Part Number | EC-520555 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Nov 19
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
LOVE the new Model!
Style: New
I hope this review is helpful! Like some reviews have mentioned - I thought I was ordering the old IC40 version as indicated in the Amazon posting, but I was sent the new model, Intellichlor Plus, instead. I had read some bad reviews about the new model. DO NOT believe them. I just received the new model and I'm so glad! (April, 2026) It works perfectly. It connected in the exact same place as my old, failed IC40, no modifications needed, just connect it, plug in the power/automation cord, and that's it! Works excellent, generating more chlorine than my original unit ever did. My Intellitouch automation mobile app recognizes and fully controls the device immediately. No special setup required. It is somewhat LARGER than the old unit, but connections are identical. It seems heavier and more solidly built than the old model. It arrived brand new in unopened Pentair packaging. Yes, it's totally too expensive, but if you have Intellitouch and an all-Pentair system, it's WORTH it. My only complaint is the new unit's internal salt-level measuring accuracy seems to be off...indicating about 800 ppm more than what I'm actually measuring in the water using a Taylor K-1766 Sodium Chloride test kit (also purchased on Amazon). But seems consistent, so no big deal. I'll always know that minor conversion, and verify anyway with my more-accurate Tayler test. Get the new model!
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Reviewed in the United States on April 25, 2026 by Jennifer Ringo
Great IC
Style: New
I bought this last May 2024 and was installed by Grecian pool guys when we opened the pool last year. I wanted to test this pentair ic40 last summer and this year before writing the review. It’s an easy installation but since I don’t want to void extra years of warranty I had the pool guys installed it, honestly it’s easy even for a 67 years old 100lbs lady. Our pool was installed 2015 and everything they use is from pentair although they only installed pentair ic20 since our pool is no more than 12000 gallon and it last around 7years when it started to fail and trouble shooting it first by changing the flow switch which gave me another 3years of service. So before you replace this expensive salt cell check first if it is the flow switch or maybe just need to clean it by mixture of water and muriatic acid. I bought ic40 instead of ic20 hoping it’s better than the ic20, this I have to wait and see but for now it’s working great for about 2 summer season and I noticed that I used less chemicals, my pool is crystal clear, salt and ph are all good. I highly recommend this, the only thing is it’s expensive but what’s not expensive nowadays.
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Reviewed in the United States on August 6, 2025 by Angel
Two failures in less than a year
Style: New
Received the first one in Sept 2025. It failed in December. Got a warranty replacement and now it has failed in Aug 2026. Two failures within one year. There appears to be a design flaw (or 2). There is a space behind the interface electrodes where calcium deposits build up even when the plates have no visible deposit. On top of that the plastic on the plate that the contacts to the control module becomes very brittle by the time the calcium deposits cause a failure that the plate cracks around the electrodes, causing leaks when it is reassembled. Although Pentair sells replacement parts for other pool sanitation products, they do not list any parts for the Intellichlor, even though it appears to be quite modular. Do not bother using the email form to ask for help. Pentair does not respond.
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Reviewed in the United States on August 23, 2026 by M. Kelley
Easy installation instructions
Style: New
Works great - as soon as it is installed have water tested to set the chlorinator- make adjustments due to weather temperature.
Reviewed in the United States on July 15, 2026 by Margie Short
IC40 Upgrade For My Salt Water Pool
Style: New
I actually ordered the IC40 on accident, I had a IC20 which I originally was going to replace after a 4 year life which was within the stated 3 - 5 year life span. When I received the IC40 I did a bit of research and decided to keep it as the larger capacity could extend its life into the 8 - 10 year span. It was an easy swap as the piping and power supply accommodated the IC40 without any changes necessary. The IC40 has several additional features that make it an improvement over what I had. I would say this was a lucky mistake on my part that turned into a better option for my pool.
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Reviewed in the United States on July 2, 2026 by Old Buzzard
One Year Later: Still the Best Investment for My Pool
Style: New
After a full year of using the Pentair IntelliChlor IC40 Salt Chlorine Generator, I can confidently say this was one of the smartest decisions I’ve made for my pool. My setup includes a pool with just over 12,400 gallons, and this unit — rated for up to 40,000 gallons — has consistently kept the water perfectly balanced without breaking a sweat. Over the past year, I’ve enjoyed clear, clean, and soft-feeling water with zero chlorine odor or irritation. Maintenance has been minimal, and I haven’t had to manually add chlorine once. The IC40 has handled Puerto Rico’s heat, heavy rainfall, and near-daily use like a champ. It’s paired with a Pentair SuperFlo VST pump, a Clean & Clear Plus 320 filter, and runs on a dedicated timer with surge protection. I also replaced all the plumbing with 1.5-inch lines and added check valves and high-quality shutoffs. The system runs flawlessly — flow is great, the salt cell self-cleans, and the control panel makes it easy to monitor and adjust output as needed. After a year of use, there’s no corrosion, no buildup, and the water quality is as good as day one. If you’re considering switching to a salt system, don’t hesitate. The IntelliChlor IC40 is worth every penny.
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Reviewed in the United States on April 10, 2025 by J
Be aware that Pentair IC40 model #520555 has been replaced by model #523735
Style: New
The original IC40 unit (model #520555) has been discontinued which I was not aware. What arrived was the new unit (model #523735) which is a bit more complicated but once I got over the learning curve, the newer model is able to better control the chlorine output and monitor the salinity. I gave 4 stars because it wasn't until I opened the box that I found out the old unit was discontinued. Luckily the new model fits in the same space and will result in improved chlorination. (deserves 5 stars but the unexpected change knocked it down one)
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Reviewed in the United States on March 31, 2026 by Benton ONeal
Doesn’t work. Different size. New version is being marketed as old known product.
Style: New
It’s not the same product. Don’t let all the photos fool you it’s the plus model that has multiple issues. It still has all the reviews of the old model that works but that is not longer available and the plus is a different size along with known defects. I got a defective model that starts producing chlorine for 30 minutes then turns off. I have tried every level of flow and it needs more flow than the previous model so keep that in mind for energy bills. It’s not the same size. Yes it’s the same length but if you have pipes close together it may not fit. I had to rework lots of pvc in a tight spot to allow it to have extra clearance on the sides. It recalculates often and then turns off. It will not tell you why. Salt is good. Flow is good. No chlorine. Slowly moving away from pentair as a whole pool system provider as each iteration seems to be more finicky and less reliable than the last.
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Reviewed in the United States on June 27, 2026 by Ryan H