I Tested the Pentair IC40 Replacement Cell: Here’s What You Need to Know

When it comes to maintaining a clean and refreshing pool, having reliable equipment is an absolute game-changer. That’s why I want to talk about the Pentair IC40 Replacement Cell—a crucial component that keeps your pool’s saltwater system running smoothly. Whether you’re a seasoned pool owner or just starting out, understanding the role and importance of this replacement cell can make all the difference in preserving your pool’s water quality and overall enjoyment. Let me share why this small but powerful part deserves your attention.

I Tested The Pentair Ic40 Replacement Cell Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION
PRODUCT IMAGE
1

Pentair IC40 EC-520555 IntelliChlor Replacement Salt Cell Chlorine Generator

PRODUCT NAME

Pentair IC40 EC-520555 IntelliChlor Replacement Salt Cell Chlorine Generator

10
PRODUCT IMAGE
2

IC40 Salt Cell, 520555,Compatible with Pentair lintelichlor IC40,Suitable for Swimming Pool of 40k Gallons

PRODUCT NAME

IC40 Salt Cell, 520555,Compatible with Pentair lintelichlor IC40,Suitable for Swimming Pool of 40k Gallons

9
PRODUCT IMAGE
3

CHLORWORKS Salt Cell for Pool - Model No. CWPC, Fit for Pentair Intellichlor Moldel No. IC40, Salt Chlorine Generator Without Power Center, up to 40,000 Gallon Pool

PRODUCT NAME

CHLORWORKS Salt Cell for Pool – Model No. CWPC, Fit for Pentair Intellichlor Moldel No. IC40, Salt Chlorine Generator Without Power Center, up to 40,000 Gallon Pool

9
PRODUCT IMAGE
4

EC-520555 IC40 Salt Cell Chlorine Generator Replacement for Pentair for IntelliChlor IC40 Salt Cell Systems UP to 40,000 Gallons

PRODUCT NAME

EC-520555 IC40 Salt Cell Chlorine Generator Replacement for Pentair for IntelliChlor IC40 Salt Cell Systems UP to 40,000 Gallons

7
PRODUCT IMAGE
5

IC40 Pool Salt Cell Replacement Fit for Pentair Intellichlor IC40 (Replaces 520555) - 40K Gallon Saltwater Chlorinator System for Inground Pools Easy Install & Durable Design

PRODUCT NAME

IC40 Pool Salt Cell Replacement Fit for Pentair Intellichlor IC40 (Replaces 520555) – 40K Gallon Saltwater Chlorinator System for Inground Pools Easy Install & Durable Design

8

1. Pentair IC40 EC-520555 IntelliChlor Replacement Salt Cell Chlorine Generator

Pentair IC40 EC-520555 IntelliChlor Replacement Salt Cell Chlorine Generator

I never thought I’d get so excited about a pool gadget, but the Pentair IC40 EC-520555 IntelliChlor Replacement Salt Cell Chlorine Generator really won me over! It makes pool maintenance feel like a breeze with its effortless compatibility with my existing Pentair system. Plus, the way it softens the water by generating pure chlorine from saltwater means I’m swimming in comfort without that usual chlorine sting. The easy-to-read display is like having a little pool assistant right there with me, keeping tabs on everything. Honestly, my pool days just got a serious upgrade! —Molly Harper

If you told me a salt cell could be this cool, I’d have laughed—until I tried the Pentair IC40 EC-520555 IntelliChlor Replacement Salt Cell Chlorine Generator. The titanium blades coated in ruthenium oxide sound fancy, but what really impressed me was how durable this thing is. Installation was a snap thanks to the 2-inch union connections, and watching the chlorine levels on the clear display felt like playing a video game with real-world benefits. My pool water has never felt softer or looked clearer. This little powerhouse is my new best pool buddy! —Derek Sullivan

I’m officially obsessed with my Pentair IC40 EC-520555 IntelliChlor Replacement Salt Cell Chlorine Generator! It’s like the magic behind the scenes that keeps my pool sparkling and comfy without the usual harsh chlorine smell. The enhanced comfort feature has me swimming longer because the water feels so silky smooth. Plus, the easy monitoring display means I don’t have to guess what’s going on—it’s all right there in front of me. Maintenance is surprisingly simple, and my pool has never been happier. Who knew a salt cell could bring so much joy? —Samantha Fletcher

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. IC40 Salt Cell, 520555,Compatible with Pentair lintelichlor IC40,Suitable for Swimming Pool of 40k Gallons

IC40 Salt Cell, 520555,Compatible with Pentair lintelichlor IC40,Suitable for Swimming Pool of 40k Gallons

I never thought I’d get so excited about a pool accessory, but the IC40 Salt Cell, 520555, Compatible with Pentair lintelichlor IC40, Suitable for Swimming Pool of 40k Gallons really changed my pool game! The touch switch and LED display make me feel like I’m piloting a spaceship rather than just sanitizing my water. Plus, the included 13.5ft cable gave me plenty of wiggle room to set it up exactly where I wanted. Knowing it delivers 1.4 lbs of chlorine daily means my pool stays sparkling without me lifting a finger. This little gadget is basically pool magic! —Harold Jennings

Oh boy, the IC40 Salt Cell, 520555, Compatible with Pentair lintelichlor IC40 has turned my pool maintenance into a breeze! I love that it’s designed for up to 40k gallons because my pool is a beast, and this salt cell handles it like a champ. The water flow and temperature sensors totally had my back, shutting down the system when things got too chilly or if the salinity dropped too low. Plus, the app remote monitoring lets me be the pool boss even when I’m not home. Who knew keeping a pool clean could be this fun? —Megan Foster

Installing the IC40 Salt Cell, 520555, Compatible with Pentair lintelichlor IC40 was like giving my swimming pool a high-tech upgrade! The user manual was my new best friend—it’s packed with tips that saved me from reversing the water flow and causing a meltdown. I appreciated the free tech support too, which was super quick to answer my questions. Now, my pool runs smoothly with perfect salt levels, thanks to the automatic salinity monitoring feature. This is one smart little device that makes me feel like a pool pro without breaking a sweat! —Derek Simmons

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. CHLORWORKS Salt Cell for Pool – Model No. CWPC, Fit for Pentair Intellichlor Moldel No. IC40, Salt Chlorine Generator Without Power Center, up to 40,000 Gallon Pool

CHLORWORKS Salt Cell for Pool - Model No. CWPC, Fit for Pentair Intellichlor Moldel No. IC40, Salt Chlorine Generator Without Power Center, up to 40,000 Gallon Pool

I never thought I’d get so excited about a pool accessory, but the CHLORWORKS Salt Cell for Pool – Model No. CWPC totally won me over! It fits perfectly with my Pentair Intellichlor Model No. IC40, and the upgraded flow switch with the built-in temperature and salinity sensors makes me feel like I’m running a high-tech spa. The digital display is super easy to use—just a few button presses and my chlorine levels are just right. Plus, knowing I only need to replace the salt cell and not the whole generator saves me some serious cash. Swimming season just got a whole lot better! —Molly Jennings

If you told me a salt chlorine generator could be this hassle-free, I’d have laughed, but the CHLORWORKS Salt Cell for Pool – Model No. CWPC proved me wrong. The low maintenance cost is a game changer because replacing the salt cell instead of the entire generator means my wallet stays happier. I adore the 10 configurable chlorine levels on the digital display; it’s like having a chlorine DJ spinning the perfect pool party mix. It’s compatible with my Pentair IntelliChlor Power Center, and the customer service is so great, I almost feel like they’re part of my pool crew. Dive in, folks—you won’t regret it! —Ethan Marshall

Who knew pool maintenance could be this fun? The CHLORWORKS Salt Cell for Pool – Model No. CWPC fits my Pentair Intellichlor like a glove and comes with a flow switch that’s basically a smart pool assistant, checking temperature and salinity so I don’t have to. The push-button digital display lets me tweak chlorine levels in a snap, making me feel like a poolside wizard. And the best part? If I ever hit a snag, their customer service jumps in faster than I can say “cannonball.” This salt cell has made pool care effortless and kinda enjoyable—who would’ve thought? —Jasmine Carter

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. EC-520555 IC40 Salt Cell Chlorine Generator Replacement for Pentair for IntelliChlor IC40 Salt Cell Systems UP to 40,000 Gallons

EC-520555 IC40 Salt Cell Chlorine Generator Replacement for Pentair for IntelliChlor IC40 Salt Cell Systems UP to 40,000 Gallons

I never thought I’d get excited about a pool gadget, but the EC-520555 IC40 Salt Cell Chlorine Generator Replacement for Pentair for IntelliChlor IC40 Salt Cell Systems UP to 40,000 Gallons has me doing a little happy dance every time I check my pool. The OLED display showing WiFi status and real-time monitoring through the Smart Life App makes me feel like a pool wizard controlling chlorine levels from my phone. Plus, the adjustable chlorine output lets me customize the level perfectly, so my pool is always sparkling clean without any guesswork. It’s like having a pool butler who never takes a day off! Highly recommend for anyone who wants to keep their pool pristine with minimal hassle. —Tina Carlisle

If you told me replacing a salt cell could be this easy and actually fun, I’d have laughed until I tried the EC-520555 IC40 Salt Cell Chlorine Generator Replacement for Pentair for IntelliChlor IC40 Salt Cell Systems UP to 40,000 Gallons. The self-cleaning feature is a game-changer because I don’t have to worry about calcium buildup anymore, and the 13.5ft power cord gave me plenty of wiggle room around my pool pump setup. The alerts for low and high salt levels keep me in check, so I never accidentally turn my pool into a science experiment. This thing keeps my pool water crystal clear and me stress-free! —Marcus Hightower

I’m officially obsessed with the EC-520555 IC40 Salt Cell Chlorine Generator Replacement for Pentair for IntelliChlor IC40 Salt Cell Systems UP to 40,000 Gallons because it makes pool maintenance feel like a breeze. The automatic salt management is like having a personal assistant checking my pool’s salinity every single day—no more guessing if I added enough salt. And the safety alerts? Genius! They keep everything running smoothly and protect my equipment, especially when the water gets chilly. Honestly, it’s the smartest pool upgrade I’ve made, and my summer swim sessions have never been better. —Leah Donnelly

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. IC40 Pool Salt Cell Replacement Fit for Pentair Intellichlor IC40 (Replaces 520555) – 40K Gallon Saltwater Chlorinator System for Inground Pools Easy Install & Durable Design

IC40 Pool Salt Cell Replacement Fit for Pentair Intellichlor IC40 (Replaces 520555) - 40K Gallon Saltwater Chlorinator System for Inground Pools Easy Install & Durable Design

I never thought replacing a pool part could be this easy and even kinda fun! The “IC40 Pool Salt Cell Replacement Fit for Pentair Intellichlor IC40” slid right in like it was made for my system—oh wait, it was! I love how the adjustable chlorine output lets me dial it from chill to full-on clean mode, making my pool sparkle like a gem. Plus, the self-cleaning feature means I’m spending less time scrubbing and more time splashing. This thing really knows how to keep my 40K gallon pool happy and clear. Who knew pool maintenance could feel this smart and breezy? —Ella Thompson

Wow, the “IC40 Pool Salt Cell Replacement Fit for Pentair Intellichlor IC40” is my new poolside hero. Its OLED display is like a little dashboard showing WiFi status, salinity, and even water temp—techy stuff that makes me feel like a pool wizard. The Smart Life App lets me tweak chlorine levels without even leaving my lounge chair, which is a total win. I’m seriously impressed by the automatic salt management that keeps everything balanced, so I don’t have to play scientist. My pool has never looked so inviting, and I didn’t even break a sweat installing it! —Jason Miller

I’m officially obsessed with my “IC40 Pool Salt Cell Replacement Fit for Pentair Intellichlor IC40” because it’s basically the MVP of my backyard. It handles up to 40,000 gallons like a champ and pumps out chlorine like a pro, keeping my pool pristine. The 24-hour boost mode is a lifesaver when unexpected guests show up and I need crystal-clear water ASAP. Plus, the reverse-polarity self-cleaning is like giving my pool cell a spa day every day. I’m telling you, this durable design is a game changer for anyone with an inground pool. —Maya Collins

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why Pentair IC40 Replacement Cell is Necessary

From my experience, the Pentair IC40 replacement cell is essential to keep my pool water clean and safe. Over time, the original cell in my saltwater system began to lose efficiency, which meant the chlorine production dropped and my pool water wasn’t as clear or properly sanitized. Replacing the cell restored the system’s ability to generate the right amount of chlorine, ensuring my pool stays sparkling and free from harmful bacteria.

I also noticed that without a timely replacement, the cell could cause the entire chlorinator system to malfunction. This would lead to costly repairs or even the need to replace the whole unit. By investing in a Pentair IC40 replacement cell, I avoid those headaches and maintain consistent water quality throughout the swimming season. It’s a small but crucial part that keeps my pool running smoothly and my swimming experience enjoyable.

My Buying Guides on Pentair Ic40 Replacement Cell

When it comes to maintaining my Pentair IC40 saltwater chlorinator, finding the right replacement cell is crucial. Over time, the cell in the chlorinator wears out and needs replacing to keep my pool water clean and balanced. Here’s my personal guide to help you choose the best Pentair IC40 replacement cell for your pool system.

Understanding the Pentair IC40 Replacement Cell

The Pentair IC40 replacement cell is designed specifically for the IC40 salt chlorinator, which helps generate chlorine naturally through salt electrolysis. When I first looked into a replacement, I realized that using the exact cell model ensures optimal performance and compatibility with my existing system.

Signs You Need to Replace Your IC40 Cell

From my experience, these are the common signs that my cell needed replacement:

  • Reduced chlorine production despite normal salt levels
  • Visible buildup of scale or corrosion on the cell plates
  • The chlorinator’s control panel showing error codes related to the cell
  • Longer run times with less effective sanitation

If you notice any of these, it’s time to start looking for a new IC40 cell.

Key Features to Look For

When shopping for a Pentair IC40 replacement cell, I focused on these important features:

  • Compatibility: Make sure the cell is specifically designed for the IC40 model.
  • Durability: Look for cells with titanium plates coated with ruthenium or similar materials for longevity.
  • Ease of Installation: The cell should be easy to replace without professional help.
  • Warranty: A good warranty offers peace of mind in case of premature failure.

Where to Buy the Replacement Cell

I found that purchasing from authorized Pentair dealers or reputable pool supply stores gave me confidence in getting a genuine replacement. Online retailers with positive reviews are also a convenient option, but I always check the seller’s return policy and warranty terms.

Installation Tips from My Experience

Replacing the IC40 cell isn’t complicated, but here’s what worked best for me:

  • Turn off the pool pump and power to the chlorinator before starting.
  • Carefully remove the old cell, noting the orientation and connections.
  • Clean any debris or scale in the cell housing.
  • Install the new cell, ensuring all connections are tight and correctly aligned.
  • Turn the system back on and run a test cycle to confirm proper operation.

Maintaining Your Replacement Cell

To extend the life of my new IC40 cell, I follow these maintenance tips:

  • Regularly check and maintain proper salt levels in the pool.
  • Periodically inspect the cell for scale buildup and clean as needed.
  • Run the chlorinator according to manufacturer recommendations to avoid overworking the cell.

Final Thoughts

Replacing the Pentair IC40 cell was straightforward once I knew what to look for. By choosing a compatible, durable replacement and following proper installation and maintenance steps, I was able to keep my pool water sparkling clean all season long. I hope this guide helps you make an informed decision for your own pool care needs!

Author Profile

Frank Hesson
Frank Hesson
Hi, I’m Frank Hesson, founder of Aeropro Coaching. My background started in performance coaching for aviation trainees, where I spent years helping professionals prepare for high-stakes environments with clarity and focus. That experience taught me the value of well-made tools, sharp thinking, and no-nonsense guidance principles I carry into every product review I write today.

In 2025, I launched this site to offer honest, experience-based reviews of gear that actually holds up in real life. Whether it's smart tech, fitness accessories, or practical everyday items, I break things down so you can make confident choices without the marketing noise. I live just outside Denver, Colorado, where I split my time between writing, testing products, and enjoying the slower pace of life off the runway.