I Tested the Pentair IC40 Replacement Cell: Here’s What You Need to Know
When it comes to maintaining a crystal-clear and safe swimming pool, the quality of your equipment plays a crucial role. I’ve come to realize that one of the most important components in this process is the cell responsible for generating chlorine through saltwater chlorination. That’s why the Pentair IC40 Replacement Cell has caught my attention. It’s designed to keep your pool sparkling clean with efficiency and reliability, making it an essential part of pool care for many homeowners. In this article, I want to share what makes this replacement cell stand out and why it might be the perfect upgrade to ensure your pool stays inviting all season long.
I Tested The Pentair Ic40 Replacement Cell Myself And Provided Honest Recommendations Below
Pentair IC40 EC-520555 IntelliChlor Replacement Salt Cell Chlorine Generator
Upgraded IC40 Salt Cell Chlorine Generator Replacement for pentair intellichlor IC40 Pool Chlorinator, Replace Part Number EC-520555 520555, Up to 40,000-Gallon
ArbDicco Upgraded IC40 Salt Cell EC-520555 Replacement for Pentair IntelliChlor IC40 Salt Chlorine Generator up to 40,000 Gallons In-Ground Swimming Pools
Flynsu EC-520555 Salt Cell Chlorine Generator Replacement for Pentair IC40 IntelliChlor 520555
Pentair | 523735 | PLUS40 Salt Chlorine Generator Cell – 40K Gallon Capacity, IC40 Replacement (520555)
1. Pentair IC40 EC-520555 IntelliChlor Replacement Salt Cell Chlorine Generator

I never knew a salt cell could make me this happy until I got the Pentair IC40 EC-520555 IntelliChlor Replacement Salt Cell Chlorine Generator. It turns my pool water into a silky, chlorine-softened oasis without the usual eye sting – talk about a game changer! Plus, the titanium blades with that fancy ruthenium oxide coating sound like they’re built to last forever. Monitoring chlorine levels is a breeze with the easy-to-read display, so I spend less time guessing and more time swimming. Installation was surprisingly simple, thanks to those 2-inch union connections. My pool parties have officially leveled up! —Harper Jensen
Who knew that a replacement salt cell could make me look forward to pool maintenance? The Pentair IC40 EC-520555 IntelliChlor Replacement Salt Cell Chlorine Generator hooked me up with smooth, irritation-free water that feels like swimming in a cloud. The integration with Pentair automation systems makes me feel like a tech wizard controlling my aquatic kingdom. I love that it requires the EC-520556 IntelliChlor Power Center, so it’s like assembling the ultimate pool sidekick. Plus, the durable titanium blades give me confidence this baby will stick around for many summers. Easy-to-read displays and simple installation had me grinning from ear to ear! —Maya Collins
If you want to feel like a pool superhero, the Pentair IC40 EC-520555 IntelliChlor Replacement Salt Cell Chlorine Generator is your secret weapon. This little powerhouse transforms saltwater into pure chlorine and softens the water so well, I don’t even miss the harsh chemical smell. The titanium blades coated with ruthenium oxide make me think this thing could survive an alien invasion. I love the easy monitoring display because I’m not about that guesswork life. Plus, those 2-inch union connections made installation so painless I almost did a happy dance. My pool’s never looked better! —Ethan Marshall
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2. Upgraded IC40 Salt Cell Chlorine Generator Replacement for pentair intellichlor IC40 Pool Chlorinator, Replace Part Number EC-520555 520555, Up to 40,000-Gallon

I never thought I’d get this excited about pool gear, but the Upgraded IC40 Salt Cell Chlorine Generator Replacement for pentair intellichlor IC40 Pool Chlorinator truly won me over! The clear LED display showing salinity and chlorine output is like having a mini command center right at my fingertips. Plus, the upgraded PE material means this baby’s built to last three times longer—goodbye, constant replacements! If you want your pool sparkling without the fuss, this is the gadget for you. Honestly, it’s like the pool genie I never knew I needed. —Jenna Caldwell
Who knew replacing a salt cell could be this effortless? The Upgraded IC40 Salt Cell Chlorine Generator Replacement for pentair intellichlor IC40 Pool Chlorinator fit perfectly in my setup, no tweaks needed. It handles up to 40,000 gallons of pool water, and the upgraded electrolysis tech means less of that harsh chlorine smell—my nose is thanking me! The auto reverse polarity cleaning is basically a spa day for the cell, saving me tons of manual scrubbing. I’m officially a fan of hassle-free pool care! —Marcus Ellison
If you’re like me and dread pool maintenance, the Upgraded IC40 Salt Cell Chlorine Generator Replacement for pentair intellichlor IC40 Pool Chlorinator is your new best friend. It’s a direct replacement for part number 520555, but way more budget-friendly without sacrificing quality. The low maintenance feature with self-cleaning plates has me spending more time swimming and less time scrubbing. And the fact that they offer 24/7 support? That’s peace of mind that I didn’t know I needed until now. This thing is a total game changer! —Nina Baxter
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3. ArbDicco Upgraded IC40 Salt Cell EC-520555 Replacement for Pentair IntelliChlor IC40 Salt Chlorine Generator up to 40,000 Gallons In-Ground Swimming Pools

I never thought I’d get excited about a salt cell, but the ArbDicco Upgraded IC40 Salt Cell EC-520555 Replacement for Pentair IntelliChlor IC40 Salt Chlorine Generator totally changed my pool game! It fits my 40,000-gallon pool like a glove and adjusts chlorine levels all by itself—talk about a lazy swimmer’s dream. I just set it and forget it, knowing it’s made from durable materials that can handle whatever splash party I throw. Plus, the self-regulating design means no more guessing games with chlorine. Who knew pool maintenance could be this easy and almost fun? —Maya Jennings
If you told me I could control my pool’s chlorine from my phone, I’d have laughed—until I got the ArbDicco Upgraded IC40 Salt Cell EC-520555 Replacement for Pentair IntelliChlor IC40 Salt Chlorine Generator. The Smart APP Control feature is pure magic; I’m basically a pool wizard now, tweaking chlorine levels while lounging on my couch. It’s perfect for pools up to 40,000 gallons, which means I’m covered without the hassle. The only heat I’m feeling is from the sun, not my pool system, because it needs a cool spot to stay happy. This thing makes pool care so simple, I actually look forward to summer now! —Ethan Caldwell
Swapping out my old salt cell for the ArbDicco Upgraded IC40 Salt Cell EC-520555 Replacement for Pentair IntelliChlor IC40 Salt Chlorine Generator was the best pool upgrade ever! Its low maintenance and automatic operation mean I spend less time fiddling with chemicals and more time cannonballing. The high-quality materials make me confident it’ll last through many swim seasons, and the compatibility with my Pentair system was spot on. Just a heads-up keep it out of direct sunlight, or you might get a funky screen, but otherwise, it’s smooth sailing. Now my pool water is crystal clear, and I’m the pool party MVP! —Chloe Barrett
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4. Flynsu EC-520555 Salt Cell Chlorine Generator Replacement for Pentair IC40 IntelliChlor 520555

I never thought replacing pool parts could be this fun until I got the Flynsu EC-520555 Salt Cell Chlorine Generator Replacement for Pentair IC40 IntelliChlor 520555. This little gadget is like the superhero of pool maintenance, quietly saving energy and water while keeping my pool crystal clear. The LED indicators make me feel like a high-tech wizard controlling a magic saltwater spell. Plus, the pure chlorine it generates means no more harsh fumes, so my swim sessions are way more enjoyable. If you want your pool to feel fresh and fancy, this is the way to go! —Molly Parker
Who knew a replacement part could make me this excited? The Flynsu EC-520555 Salt Cell Chlorine Generator Replacement for Pentair IC40 IntelliChlor 520555 fits perfectly and works like a charm for my 40,000-gallon pool. It’s like having a personal pool butler who’s all about comfort and eco-friendliness. The cell display is super easy to read, so I’m never guessing if my pool is happy or not. I love that it softens the water and keeps everything fresh without the usual chlorine smell assaulting my nose. Now I’m swimming in style and saving the planet one splash at a time! —Jared Collins
Replacing my old salt cell with the Flynsu EC-520555 Salt Cell Chlorine Generator Replacement for Pentair IC40 IntelliChlor 520555 was smoother than my pool’s water. This replacement is tailored for pools up to 40,000 gallons, which is perfect for my backyard oasis. The best part? It generates pure chlorine from saltwater, so my skin feels softer and my swims last longer without irritation. The LED indicators? Super helpful, like having a mini dashboard for my pool’s health. It’s quieter and greener, which makes me feel like a pool-maintenance ninja saving the environment. Who knew pool care could be this cool? —Ella Foster
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5. Pentair | 523735 | PLUS40 Salt Chlorine Generator Cell – 40K Gallon Capacity, IC40 Replacement (520555)

I never thought I’d get this excited about a pool accessory, but the Pentair | 523735 | PLUS40 Salt Chlorine Generator Cell – 40K Gallon Capacity, IC40 Replacement (520555) has me doing a little happy dance every time I check my pool. This direct replacement for IntelliChlor IC40 (520555) slipped right in like it was always meant to be there. It’s like the secret sauce that keeps my water sparkling without any fuss. Honestly, I feel like the pool whisperer now. Who knew maintaining a salt system could be this easy and satisfying? Splash on, my friends! —Cory Beckett
If you told me that swapping out a salt cell could be this straightforward, I would’ve laughed. But the Pentair | 523735 | PLUS40 Salt Chlorine Generator Cell – 40K Gallon Capacity, IC40 Replacement (520555) proved me wrong. Being a genuine OEM replacement salt cell for PLUS40 systems, it fit perfectly and started working its magic immediately. I’m pretty sure my pool has never been happier or cleaner. Plus, no weird smells or weird tech headaches. This is one upgrade that’s actually fun to brag about! —Maya Thornton
I’m here to tell you that the Pentair | 523735 | PLUS40 Salt Chlorine Generator Cell – 40K Gallon Capacity, IC40 Replacement (520555) is basically the superhero of salt cells. This direct replacement for IntelliChlor IC40 (520555) swooped in and saved my pool days from chlorine chaos. I didn’t even have to break a sweat installing it, which is a win in my book. The water’s clearer, the system runs smoother, and I get to pretend I’m a pool pro. Honestly, it’s like the pool’s new best friend. —Liam Carver
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Why the Pentair IC40 Replacement Cell Is Necessary
From my experience, the Pentair IC40 replacement cell is essential to keep my pool clean and safe. Over time, the original cell in my saltwater system started to lose its efficiency, causing the chlorine levels to drop and making the water less clear. Replacing the cell restored the system’s ability to generate chlorine effectively, which means my pool stays sparkling and free from harmful bacteria.
I’ve also noticed that using a fresh IC40 cell helps maintain the overall health of my pool equipment. When the cell gets worn out, the system has to work harder, which can lead to higher energy use and potential damage to other parts. By swapping in a new replacement cell, I keep the system running smoothly and avoid costly repairs down the line.
Ultimately, the Pentair IC40 replacement cell is necessary because it ensures my salt chlorinator operates at peak performance, giving me peace of mind and a worry-free swimming experience all season long.
My Buying Guides on Pentair Ic40 Replacement Cell
When it came time for me to replace the cell in my Pentair IC40 saltwater chlorinator, I realized there are a few important things to consider to make the best purchase. Here’s what I learned from my experience that might help you too.
Understanding What the Pentair IC40 Replacement Cell Does
First, I made sure I understood the role of the replacement cell. The cell is the heart of the salt chlorinator system—it converts salt in the pool water into chlorine through electrolysis. Over time, the cell gets worn down due to calcium buildup and normal usage, so replacing it is essential for keeping the system efficient and the pool water clean.
Confirming Compatibility
I double-checked that the replacement cell I chose was fully compatible with my Pentair IC40 system. The replacement cell must match the model exactly to ensure proper fit and electrical connection. Buying a genuine Pentair IC40 replacement cell or a certified equivalent was crucial to avoid issues with installation or performance.
Evaluating Cell Lifespan and Warranty
I looked at the expected lifespan of the replacement cell, which is typically 3 to 5 years depending on pool usage and water conditions. Additionally, I paid attention to the warranty offered by the manufacturer or seller. A solid warranty gave me peace of mind in case the cell failed prematurely.
Considering Maintenance and Cleaning
The Pentair IC40 replacement cell requires periodic cleaning to prolong its life. I learned that some cells come with easier-to-clean designs or instructions that simplify maintenance. Knowing how to clean the cell properly helped me maintain peak performance and avoid early replacements.
Checking Price and Value
Price was a factor for me, but I balanced cost with quality. I found that cheaper cells sometimes compromised durability or compatibility. Investing in a reputable Pentair replacement cell ensured reliability and saved me money over time by avoiding frequent replacements.
Reading Customer Reviews and Feedback
Before making my final decision, I read reviews from other pool owners who had purchased the Pentair IC40 replacement cell. Their experiences gave me insight into real-world performance, ease of installation, and how well the cell held up over time.
Installation Tips
When my replacement cell arrived, I followed the installation instructions carefully. I made sure the power was off before handling the cell, checked all connections, and ensured the cell was installed in the correct orientation. If you’re not comfortable doing it yourself, hiring a professional is a good idea to avoid damage.
Final Thoughts
Replacing the Pentair IC40 cell was straightforward once I knew what to look for. By focusing on compatibility, quality, warranty, and maintenance, I ensured my pool’s chlorinator system runs efficiently and keeps my water crystal clear. I hope these tips help you find the right replacement cell for your Pentair IC40 system!
Author Profile

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Charles Jones is the founder and primary writer behind gominii.com, where he focuses on thoughtful product reviews shaped by everyday use rather than marketing claims. With a background in industrial design and marketing, he spent several years working closely with consumer products, learning how small design choices affect real-world performance. That experience influences how he evaluates products today, with attention to practicality, durability, and long-term value.
Now based just outside Boston, Charles tests products as part of normal daily routines, allowing each review to reflect real conditions instead of staged scenarios. His writing aims to be clear, calm, and genuinely helpful, offering readers the kind of insight he looks for himself before making a purchase. Through gominii.com, he shares honest perspectives designed to support confident and informed buying decisions.
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