Pentair 520555 IntelliChlor IC40 Salt Chlorine Generator Cell

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.

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.

This was our first time to purchase the newly designed cell. We have had several of the older model. We did have a hiccup, but the seller went above and beyond to help make it right for us. For that we r so grateful. The new cell works like a charm!

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.