Pentair IC40 EC-520555 IntelliChlor Replacement Salt Cell Chlorine Generator

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!

The original Pentair salt cell that came with the pool installation of lasted about 5-6 years. I replaced it with an off brand because it was cheaper. So I saved money at the time, but the replacement salt cell only lasted 2 years. Replacement brand sells also. Do not allow for full functionality like setting the chlorine level from your remote app. This time I decided to go back to the Pentair salt cell and was surprised after shopping around that this one was offered at a much cheaper price than every other Pentair supplier locally or online. I was thinking all kinds of scenarios like maybe it was refurbished, or didn't have all the parts or wiring, or wouldn't come with a warranty. I was pleasantly surprised that it came in the original sealed factory box, included all parts, including replacement pipe connectors and gaskets, and has the full 2 year factory warranty. Installation was quick and easy. No leaks and up and running with full functionality. If you are looking to replace your Pentair salt cell, it is worth it to get this one at such a deeply discounted price. Not sure how they do it, but everything looks just fine, and delivery even arrived 2 days earlier, then expected. Their customer support is responsive as well. I had a question up front before I purchased it and they answered me within an hour.

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.

This is a review of the product, not the seller. This is the second cell I've purchased and this has to be the worst customer service I've ever experienced for any product. Earlier in the year I called because I had a question about the readout of the cell when my pool was opened. The customer service rep basically read a few questions off a list and then told me I needed a new salt cell and I purchased one. With it being early in the season, all the pool companies were booked up. I went ahead and ordered a new cell only to find out later that the old one worked fine. When I went to clean the new cell for the second time after about 1.5 months of use, I noticed more calcium buildup than I had ever seen before. I tried cleaning it with the normal cleaning solution 5 times and the buildup remained. I called the salt cell company just to see if they had any ideas on how to remove the buildup. Again, someone just read questions off a list. They told me to send pictures to an email they provided including a professional water test printout. They told me that all communication would need to be done via email from that point on. I sent them pictures of the cell buildup and the pool company professional test printout. The pool company told me that my water seemed good. I have yet to hear back from the maker of Intellichlor in over two weeks. I've emailed them asking if they received my emails and I've gotten no response. Update 9/6/2024 I heard back from the manufacturer. They told me that I need a new salt cell. I think this may be their response to every inquiry. I emailed them back reminding them that this was a brand new cell (three months old) and asked them how to file a warranty claim since the warranty is two years. I have not heard back.

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.

great product. Plug and play nothing else to do. Directions had me doing numerous things but it is plug and play.

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)

This is not as cost effective as I would have liked but installation was easy and I now have the correct salt levels and I can see what the levels actually are because of the display. Overall good product, u feel like I have a better one then the original.