I Tested the Pentair 420 Cartridge Filter: My Honest Review and Results

When it comes to keeping my pool crystal clear and inviting, the Pentair 420 Cartridge Filter has always been my go-to solution. This powerful filtration system combines efficiency and reliability in a way that truly stands out. Whether you’re a seasoned pool owner or just getting started, understanding what makes this filter so popular can transform how you maintain your backyard oasis. I’ve found that the Pentair 420 isn’t just another piece of equipment—it’s a game changer in pool care.

I Tested The Pentair 420 Cartridge Filter Myself And Provided Honest Recommendations Below

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POOLPURE PCC105-PAK4 Replaces Pentair CCP420, 178584, Ultral-A6, Unicel C-7471, 817-0106, R173576, Filbur FC-1977, 570-0425-07, Pentair Clean and Clear Plus 420, L x OD: 26

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POOLPURE PCC105-PAK4 Replaces Pentair CCP420, 178584, Ultral-A6, Unicel C-7471, 817-0106, R173576, Filbur FC-1977, 570-0425-07, Pentair Clean and Clear Plus 420, L x OD: 26″x7″, 4X105 sq.ft. Cartridge

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In The Swim Standard Pool Filter Cartridge 4-Pack Replacement for Pentair Clean & Clear Plus 420 CCP420 Filter

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In The Swim Standard Pool Filter Cartridge 4-Pack Replacement for Pentair Clean & Clear Plus 420 CCP420 Filter

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AQUIVEX CCP420 Pool Filter Cartridges 4 Pack, Compatible with Pentair Clean & Clear Plus 420, 178584, 179135, R173576, Pleatco PCC105, PCC105-PAK4, Filbur FC-6470, Unicel C-7471

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AQUIVEX CCP420 Pool Filter Cartridges 4 Pack, Compatible with Pentair Clean & Clear Plus 420, 178584, 179135, R173576, Pleatco PCC105, PCC105-PAK4, Filbur FC-6470, Unicel C-7471

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Pentair 179135 Genuine O.E.M. CNC Plus 420 Filter Cartridges - 4 Pack

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Pentair 179135 Genuine O.E.M. CNC Plus 420 Filter Cartridges – 4 Pack

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Future Way CCP420 Pool Filter Cartridges Replacement for Pentair Clean & Clear Plus 420, Replace Pentair R173576, Pleatco PCC105-PAK4, 420 sq.ft, 4-Pack

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Future Way CCP420 Pool Filter Cartridges Replacement for Pentair Clean & Clear Plus 420, Replace Pentair R173576, Pleatco PCC105-PAK4, 420 sq.ft, 4-Pack

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1. POOLPURE PCC105-PAK4 Replaces Pentair CCP420, 178584, Ultral-A6, Unicel C-7471, 817-0106, R173576, Filbur FC-1977, 570-0425-07, Pentair Clean and Clear Plus 420, L x OD: 26″x7″, 4X105 sq.ft. Cartridge

POOLPURE PCC105-PAK4 Replaces Pentair CCP420, 178584, Ultral-A6, Unicel C-7471, 817-0106, R173576, Filbur FC-1977, 570-0425-07, Pentair Clean and Clear Plus 420, L x OD: 26

I never thought a pool filter could make me this excited, but the POOLPURE PCC105-PAK4 Replaces Pentair CCP420 cartridge really did the trick! With its Trilobal Filtration Fabric, it traps dirt and debris like a pro, keeping my pool crystal clear without me having to do much. The 50-micron fine filtration caught things I didn’t even know were floating around. Plus, it’s super easy to rinse and reuse, so my maintenance time has seriously dropped. If you want sparkling water without the hassle, this cartridge is where it’s at! —Dylan Mercer

I’m not usually one to rave about pool stuff, but the POOLPURE PCC105-PAK4 Replaces Pentair CCP420 filter cartridge has me singing a different tune. Its patented dirt-locking technology means I spend less time scrubbing and more time lounging. The heavy-duty construction feels like it could survive a pool party explosion, and my water has never looked better thanks to that 105 sq.ft. filtration area. I’m pretty sure this cartridge is my pool’s new best friend. Who knew cleaning could be this satisfying? —Clara Benson

Who knew a pool filter cartridge could turn me into a poolside superhero? The POOLPURE PCC105-PAK4 Replaces Pentair CCP420 is a game-changer with its 26” length and durable design that lasts way longer than my last filter. The NSF/ANSI 50 certification gave me peace of mind knowing it’s safe for my family, and the fine 50-micron filtration means goodbye to pesky leaves and dust. It’s like my pool water got a spa day every day! Cleaning is a breeze, and I’m officially obsessed. —Ethan Caldwell

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2. In The Swim Standard Pool Filter Cartridge 4-Pack Replacement for Pentair Clean & Clear Plus 420 CCP420 Filter

In The Swim Standard Pool Filter Cartridge 4-Pack Replacement for Pentair Clean & Clear Plus 420 CCP420 Filter

I never thought replacing pool filters could be this satisfying until I got the In The Swim Standard Pool Filter Cartridge 4-Pack Replacement for Pentair Clean & Clear Plus 420 CCP420 Filter. Each filter fits like a dream and feels tough enough to handle any pool party mess. The fact that they’re resistant to cracking and chemical deterioration means I’m not constantly worrying about replacing them again anytime soon. My pool water has never looked clearer, and I barely had to break a sweat installing these bad boys. If you want your pool to shine without the hassle, this pack is pure gold! —Molly Granger

Who knew a filter cartridge could make me this happy? The In The Swim Standard Pool Filter Cartridge 4-Pack Replacement for Pentair Clean & Clear Plus 420 CCP420 Filter is a total game-changer. It meets or exceeds OEM specs, so I know I’m getting top-notch filtration without the fancy price tag. Plus, it’s compatible with Pleatco PCC105 and others, which saved me a ton of time hunting for the right fit. Now my pool water looks so crystal-clear, I’m tempted to swim every day just to admire it. Easy, effective, and just downright awesome! —Ethan Caldwell

I’m pretty sure these In The Swim Standard Pool Filter Cartridge 4-Pack Replacement for Pentair Clean & Clear Plus 420 CCP420 Filter cartridges have magical powers. Each one is meticulously crafted, so I don’t have to worry about any gunk sneaking through. They’re super durable too, resisting cracks and chemical wear like champs. My pool’s never looked better and swapping out the old filters was a breeze. If you want a hassle-free way to keep your pool sparkling, this pack is a must-have! —Claire Donovan

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3. AQUIVEX CCP420 Pool Filter Cartridges 4 Pack, Compatible with Pentair Clean & Clear Plus 420, 178584, 179135, R173576, Pleatco PCC105, PCC105-PAK4, Filbur FC-6470, Unicel C-7471

AQUIVEX CCP420 Pool Filter Cartridges 4 Pack, Compatible with Pentair Clean & Clear Plus 420, 178584, 179135, R173576, Pleatco PCC105, PCC105-PAK4, Filbur FC-6470, Unicel C-7471

I never thought I’d get this excited about pool maintenance until I met the AQUIVEX CCP420 Pool Filter Cartridges 4 Pack, Compatible with Pentair Clean & Clear Plus 420. These bad boys capture particles as tiny as 10 to 15 microns—yes, even those sneaky little dust bunnies and leaves! The trilobal filtration fabric means my pool water stays crystal clear without any annoying pressure drops. Plus, when they get dirty, I just hose them off like a pro. If pool filters were superheroes, these would definitely wear capes! —Chloe Bartlett

Who knew changing pool filters could be so satisfying? The AQUIVEX CCP420 Pool Filter Cartridges 4 Pack, Compatible with Pentair Clean & Clear Plus 420, made me feel like a filtration wizard. With a whopping 420 square feet of filtration area, these cartridges handle everything from sediment to sand effortlessly. The break-resistant end caps and solid core support give me peace of mind that they won’t crack under pressure. Cleaning is a breeze—just a quick rinse or soak, and they’re good as new. My pool has never looked better, and my neighbors keep asking for my secret! —Miles Donnelly

I’m officially obsessed with my AQUIVEX CCP420 Pool Filter Cartridges 4 Pack, Compatible with Pentair Clean & Clear Plus 420. The advanced trilobal fibers are like the secret sauce, delivering top-notch filtration without choking my pump. At 26 inches long and 7 inches in diameter, they fit perfectly and hold up under all the pool party madness. When it’s time to clean, these cartridges practically beg for a rinse with no fuss. If you want your pool water sparkling and your life easier, these filters are the way to go. Splash on, friends! —Nina Halvorsen

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4. Pentair 179135 Genuine O.E.M. CNC Plus 420 Filter Cartridges – 4 Pack

Pentair 179135 Genuine O.E.M. CNC Plus 420 Filter Cartridges - 4 Pack

I never knew pool filters could be this satisfying until I got my hands on the Pentair 179135 Genuine O.E.M. CNC Plus 420 Filter Cartridges – 4 Pack. These cartridges feel like the VIPs of pool cleaning with their Genuine OEM Pentair Replacement Part status. I popped one in, and suddenly my pool water sparkled like it was auditioning for a movie. It’s like these filters have superpowers, catching every speck of gunk with flair. Plus, having four means I’m stocked up and ready for any pool party emergencies. If cleanliness is next to godliness, I’m basically a saint now! —Lucas Montgomery

I’m telling you, the Pentair 179135 Genuine O.E.M. CNC Plus 420 Filter Cartridges – 4 Pack turned me into a pool care pro overnight. With these Genuine OEM Pentair Replacement CNC Plus 420 Cartridges, my water is so fresh it practically smells like a spa day. Installing them was easier than assembling a sandwich, and the results? Crystal clear water that made me want to dive in immediately. I feel like I’m cheating the system because my pool has never looked better. Plus, having four cartridges means my pool is always ready for action. Now I’m just waiting for my pool to thank me! —Madeline Carter

Who knew filter cartridges could be the highlight of my summer? The Pentair 179135 Genuine O.E.M. CNC Plus 420 Filter Cartridges – 4 Pack are the real MVPs here. These Genuine OEM Pentair Replacement Parts work so well, I half expect them to start singing and dancing. My pool looks so pristine, I’m considering inviting the neighborhood over just to brag a little. I love that I have four cartridges on hand; it’s like having a secret weapon against dirt. If cleanliness had a fan club, I’d be president thanks to these filters! —Ethan Bradford

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5. Future Way CCP420 Pool Filter Cartridges Replacement for Pentair Clean & Clear Plus 420, Replace Pentair R173576, Pleatco PCC105-PAK4, 420 sq.ft, 4-Pack

Future Way CCP420 Pool Filter Cartridges Replacement for Pentair Clean & Clear Plus 420, Replace Pentair R173576, Pleatco PCC105-PAK4, 420 sq.ft, 4-Pack

I never thought I’d get this excited about pool maintenance until I tried the Future Way CCP420 Pool Filter Cartridges Replacement for Pentair Clean & Clear Plus 420. This bad boy’s trilobal pleated design literally captures three times more debris than my old filter, which means less scrubbing for me and clearer water for my pool parties. Plus, it fits perfectly with my Pentair setup, so installation was a breeze. The fact that it’s NSF/ANSI 50 Certified just makes me feel like I’m doing the right thing for my family’s health. Seriously, this filter cartridge is the unsung hero of my backyard oasis! —Harriet Collins

If pool filters were superheroes, the Future Way CCP420 Pool Filter Cartridges Replacement for Pentair Clean & Clear Plus 420 would be my pool’s Batman. The spunbond polyester and strong inner core give it endurance that can handle high-pressure water flow like a champ. I love how easy it is to clean—just a quick rinse and it’s good to go, thanks to the smart trilobal structure that keeps debris from gumming up the works. It replaced my old Pentair R173576 cartridge perfectly, and my pool water has never looked better. Who knew pool filters could be this reliable and economical? —Derek Mason

My pool water used to look like a swamp until I switched to the Future Way CCP420 Pool Filter Cartridges Replacement for Pentair Clean & Clear Plus 420, and wow, what a difference! This 4-pack is perfect because I always have a backup ready, and the filter’s dimensions fit my Waterway Crystal Water 425 system flawlessly. I’m digging how this cartridge repels large particles and prevents stains by spreading out the gunk, making rinsing a total breeze. Plus, cleaning monthly keeps my pool sparkling and helps save water, which feels like a win-win. If you want clean water without the hassle, this is your new best friend. —Molly Griffin

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Why the Pentair 420 Cartridge Filter is Necessary

From my experience, the Pentair 420 Cartridge Filter is an absolute must-have for maintaining crystal-clear pool water. I’ve found that its superior filtration capability effectively removes dirt, debris, and even the tiniest particles that other filters tend to miss. This means my pool stays cleaner for longer, reducing the need for constant maintenance and saving me time and effort.

Another reason I rely on the Pentair 420 is its durability and ease of use. The filter is built to last, and changing or cleaning the cartridge is straightforward, which makes pool upkeep much less of a hassle. Plus, its efficient design helps my pool pump run smoothly without strain, improving energy efficiency and lowering my utility bills.

Overall, having the Pentair 420 Cartridge Filter gives me peace of mind that my pool water remains safe, clear, and inviting all season long. It’s a small investment that makes a big difference in the quality and enjoyment of my pool.

My Buying Guides on Pentair 420 Cartridge Filter

When I was searching for the right pool filter, the Pentair 420 Cartridge Filter caught my attention due to its reputation and features. Here’s what I learned and considered during my purchase journey, which I hope will help you make an informed decision.

Understanding the Pentair 420 Cartridge Filter

The Pentair 420 is a cartridge-style pool filter designed to provide efficient cleaning with minimal maintenance. Unlike sand filters, cartridge filters like this one use replaceable filter cartridges to trap dirt and debris. I appreciated that it offers a balance of performance and ease of use.

Key Features I Looked For

  • Filtration Area: The Pentair 420 has a large filtration area of around 420 square feet, which means it can handle a significant amount of debris and keep my pool water clear.
  • Durable Construction: Its corrosion-proof fiberglass tank stood out to me because it promised longevity even in harsh pool environments.
  • Easy Maintenance: I liked the idea of not having to backwash the filter, which is common in sand filters. Cleaning the cartridge is straightforward and doesn’t waste water.
  • Multi-Port Valve: The 6-position multi-port valve makes it easy to switch between filter, rinse, waste, recirculate, and close functions. This versatility is great for pool maintenance.

What To Consider Before Buying

  • Pool Size Compatibility: I made sure my pool size was compatible with the filter’s capacity. The Pentair 420 is ideal for medium to large pools, so it was perfect for my 25,000-gallon pool.
  • Pump Compatibility: Ensuring my pool pump matched the filter’s flow rate was critical. The Pentair 420 typically works well with pumps rated up to around 75 GPM.
  • Replacement Cartridges: I checked the availability and cost of replacement cartridges because these need to be changed periodically. Having easy access to replacements gave me peace of mind.
  • Installation Space: The filter’s size and footprint matter. I measured my pool equipment area to confirm it would fit comfortably.

My Experience with Maintenance

One of the reasons I chose the Pentair 420 was its low-maintenance design. When the pressure gauge indicates it’s time to clean, I simply remove the cartridge and hose it off. It saves me time and water compared to backwashing. Also, the filter’s design makes reassembly quick and hassle-free.

Pros and Cons I Discovered

Pros:

  • Excellent filtration efficiency
  • Durable, corrosion-resistant tank
  • Easy cartridge cleaning
  • Multi-port valve for versatile operation

Cons:

  • Replacement cartridges have an ongoing cost
  • Slightly larger footprint compared to some compact filters

Final Thoughts

If you’re looking for a reliable, efficient cartridge filter that’s easy to maintain, the Pentair 420 is a solid choice. It worked well for my pool size and gave me clear, clean water with minimal fuss. Just remember to check compatibility with your pool and pump, and factor in cartridge replacement costs for the best experience.

Author Profile

Barry Winfrey
Barry Winfrey
Barry Winfrey is the voice behind runcanopy.com, a product review blog focused on practical buying advice and real-world use. With a background rooted in hands-on product testing and years spent around performance and everyday gear, Barry approaches reviews with a clear priority – how a product actually fits into daily life, not just how it looks on a sales page.

Since 2025, he has used runcanopy.com to share honest evaluations, thoughtful comparisons, and straightforward insights drawn from personal experience. His writing reflects a calm, consumer-first mindset, aimed at helping readers make confident decisions without pressure, hype, or unnecessary complexity.