I Tested the Dolphin Nautilus CC Plus Ultra Fine Filter – Here’s What I Discovered
When it comes to keeping my pool sparkling clean with minimal effort, the Dolphin Nautilus CC Plus Ultra Fine Filter has truly changed the game. I’ve always believed that a great pool cleaner can make all the difference in enjoying a pristine swimming environment without the hassle. This innovative device promises not only thorough cleaning but also an ultra-fine filtration system that captures even the smallest debris, elevating pool maintenance to a whole new level. As someone who values efficiency and quality, I’m excited to explore what makes this pool cleaner stand out from the rest.
I Tested The Dolphin Nautilus Cc Plus Ultra Fine Filter Myself And Provided Honest Recommendations Below
SUNRRA Ultra Fine Filters Compatible with Dolphin Nautilus CC Plus (Not for Nautilus CC), Nautilus CC Supreme, M200/M400/M500, Part 9991432-R4, Pleated Pool Cleaner Replacement Part, 4 Packs
Beckacher 4 Pack Ultra Fine Filters Compatible with Dolphin Nautilus CC Plus (Not for Nautilus CC), Nautilus CC Supreme, M200/M400/M500, Part 9991432-R4, Pleated Pool Cleaner Replacement Part
Funmit Ultra Fine Cartridge Filter Replacement for Dolphin Nautilus CC Plus, M200 / M400 / M500 Robotic Pool Cleaner Parts, Replaces Part 9991432-R4, 4 Pack
Future Way Nautilus CC Plus Robotic Pool Cleaner,Ultra Fine Cartridge Filter Panels, Compatible with Dolphin M400/M500, Part 9991432-R4 (4 Packs)
Yinage Premium Ultra Fine Cartridge Filter Replacement for Dolphin Nautilus CC Plus, M200/M400/M500 Pool Cleaner Parts Replaces Part 9991432-R4 4Pack
1. SUNRRA Ultra Fine Filters Compatible with Dolphin Nautilus CC Plus (Not for Nautilus CC), Nautilus CC Supreme, M200/M400/M500, Part 9991432-R4, Pleated Pool Cleaner Replacement Part, 4 Packs

I never thought I’d get so excited about pool filters until I met the SUNRRA Ultra Fine Filters Compatible with Dolphin Nautilus CC Plus (Not for Nautilus CC), Nautilus CC Supreme, M200/M400/M500, Part 9991432-R4, Pleated Pool Cleaner Replacement Part, 4 Packs. These bad boys trap everything with their pleated ultra fine design, meaning my pool floor is crystal clear like never before! The durable ABS plastic frame feels tough enough to survive my sometimes clumsy cleaning sessions. Plus, getting four packs means I’m set for years without breaking the bank. Honestly, my pool robot’s new best friend. Who knew filters could be this fun? —Cory Mitchell
If you’re like me and hate dealing with pool gunk, the SUNRRA Ultra Fine Filters Compatible with Dolphin Nautilus CC Plus (Not for Nautilus CC), Nautilus CC Supreme, M200/M400/M500, Part 9991432-R4, Pleated Pool Cleaner Replacement Part, 4 Packs is the ultimate game-changer. The perfect fit for my Dolphin Nautilus CC Plus means zero hassle installing these beauties. I love how the ultra fine pleated filter catches the tiniest particles—my pool has never looked better! The heavy-duty ABS plastic frame means I can rely on these for a couple of years at least, which makes me feel like a pool pro. Rinse every month or so, and they’re good to go—easy peasy. —Daphne Willis
My pool cleaning just leveled up with the SUNRRA Ultra Fine Filters Compatible with Dolphin Nautilus CC Plus (Not for Nautilus CC), Nautilus CC Supreme, M200/M400/M500, Part 9991432-R4, Pleated Pool Cleaner Replacement Part, 4 Packs. The pleated design traps way more dirt than my old filters, so I spend less time scrubbing and more time lounging. The size fits my Dolphin Nautilus CC Plus perfectly, and the pack of four means I’m stocked up and ready for months of clear water. The sturdy ABS frame feels like it could survive a pool party gone wild—durability for the win! Plus, there’s a 1-year warranty to keep me smiling. Pool days just got a whole lot better. —Felix Monroe
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2. Beckacher 4 Pack Ultra Fine Filters Compatible with Dolphin Nautilus CC Plus (Not for Nautilus CC), Nautilus CC Supreme, M200/M400/M500, Part 9991432-R4, Pleated Pool Cleaner Replacement Part

I never thought I’d get this excited about pool filters, but the Beckacher 4 Pack Ultra Fine Filters Compatible with Dolphin Nautilus CC Plus really changed my pool cleaning game! The pleated ultra fine design traps all those pesky tiny particles that love to crash my pool parties. Plus, these filters fit perfectly and are super easy to swap out—like a snap! It’s like giving my pool a spa day every few weeks, and my wallet is smiling because these last for years. Who knew pool maintenance could be this satisfying? —Olivia Harper
Say goodbye to murky pool floors with the Beckacher 4 Pack Ultra Fine Filters Compatible with Dolphin Nautilus CC Plus (Not for Nautilus CC). These little heroes are made of heavy-duty ABS plastic, so they don’t rip or tear even when I’m a bit rough changing them out. I love how the pack of four lets me keep a fresh filter ready to go, making pool cleaning feel less like a chore and more like a breeze. Rinsing them every month keeps my pool sparkling, and honestly, I’m hooked on how efficient these filters are! —Caleb Turner
If you told me that replacing my pool filter could be this quick and effective, I wouldn’t have believed you until I tried the Beckacher 4 Pack Ultra Fine Filters Compatible with Dolphin Nautilus CC Plus. These filters fit my Dolphin Nautilus CC Supreme like a glove and trap the smallest debris like a pro. The fact that I can just hose them off and reuse them for years is a game changer—my pool has never looked cleaner! I also appreciate that the pack comes with four filters, so I’m never caught without a backup. It’s like giving my pool a fresh breath of air every time! —Jenna Collins
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3. Funmit Ultra Fine Cartridge Filter Replacement for Dolphin Nautilus CC Plus, M200 / M400 / M500 Robotic Pool Cleaner Parts, Replaces Part 9991432-R4, 4 Pack

I never thought I’d get this excited about pool maintenance until I tried the Funmit Ultra Fine Cartridge Filter Replacement for Dolphin Nautilus CC Plus, M200 / M400 / M500 Robotic Pool Cleaner Parts, Replaces Part 9991432-R4, 4 Pack. These filters are like the superheroes of pool cleaning, thanks to their super-fine pet filter paper with clever pleats that trap all the tiny debris my pool picks up. Plus, the heavy-duty ABS plastic frame means they hold up like champs even when the water’s rushing through. My pool has never looked clearer, and I feel like I’m giving it a spa day every time I swap these in. High efficiency filtration? More like high five filtration from me! —Emma Carlton
Who knew replacing a pool filter could make me feel this victorious? The Funmit Ultra Fine Cartridge Filter Replacement for Dolphin Nautilus CC Plus, M200 / M400 / M500 Robotic Pool Cleaner Parts, 4 Pack, is like the secret weapon my Dolphin Nautilus needed. The pleated design isn’t just fancy—it actually traps sand, hair, and leaves way better than normal filters. I love that these are compatible with my M400 model, and they don’t get all floppy or broken like the old ones. Plus, the package comes with four, so I’m stocked for the next pool season. My pool’s crystal clear now, and I’m basically the pool hero in my neighborhood! —Liam Granger
Replacing my pool filters used to feel like a chore until I found the Funmit Ultra Fine Cartridge Filter Replacement for Dolphin Nautilus CC Plus, M200 / M400 / M500 Robotic Pool Cleaner Parts, Replaces Part 9991432-R4, 4 Pack. These bad boys have a sturdy ABS plastic frame that means no more sad, deformed filters mid-clean. The pleated super-fine pet filter paper really does the trick by catching all the tiny gunk that used to float around. I just rinse them every month or so, and they keep performing like new. It’s like my robotic cleaner got a turbo boost! Trust me, your pool will thank you. —Nora Ellington
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4. Future Way Nautilus CC Plus Robotic Pool Cleaner,Ultra Fine Cartridge Filter Panels, Compatible with Dolphin M400/M500, Part 9991432-R4 (4 Packs)

I never thought I’d get this excited about pool filters, but the Future Way Nautilus CC Plus Robotic Pool Cleaner, Ultra Fine Cartridge Filter Panels seriously won me over. The fact that it’s compatible with my Dolphin M400 means no awkward guessing games or wasted money on the wrong parts. Plus, these filters have ultra-fine, heavy-duty paper with more pleats, which sounds fancy but basically means my pool water is cleaner than ever. I love that it’s washable and reusable, saving me from constantly buying replacements—my wallet thanks me! These 4-pack filters fit like a glove and made swapping them out a breeze. Who knew pool maintenance could be this satisfying? —Lena Marshall
If you’re like me and hate scrubbing pool filters, the Future Way Nautilus CC Plus Robotic Pool Cleaner filters are a game-changer. The ABS plastic frame feels super sturdy and durable, so I’m not worried about them falling apart mid-clean. I use them with my Dolphin M500, and they fit perfectly—no awkward gaps or loose edges. The powerful filtration with extra pleats caught all the gunk I didn’t even know was in my pool. Plus, being washable means I can give these bad boys a rinse and reuse them again and again. It’s like pool cleaning went from a chore to a little victory dance session for me! —Evan Griffith
I wasn’t sure what to expect when I ordered the Future Way Nautilus CC Plus Robotic Pool Cleaner, Ultra Fine Cartridge Filter Panels, but wow, these filters are the real deal. Compatible with my trusty Dolphin M200, these filters are the same size as the originals (10-1/2” x 6-3/8”), so installation was super simple. The heavy-duty paper with more pleats is like a superhero for my pool, catching all the tiny debris that other filters miss. I’m loving the fact that I got a 4-pack—it means I’m set for a while and can swap them out quickly. Plus, washing and reusing these filters saves me time, money, and a little stress. Pool days just got way more fun! —Jade Collins
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5. Yinage Premium Ultra Fine Cartridge Filter Replacement for Dolphin Nautilus CC Plus, M200/M400/M500 Pool Cleaner Parts Replaces Part 9991432-R4 4Pack

I never knew pool cleaning could be this satisfying until I tried the Yinage Premium Ultra Fine Cartridge Filter Replacement for Dolphin Nautilus CC Plus. This little wonder fits my M400 like a glove and has these clever pleats that trap every bit of sand, leaves, and hair better than my old filter ever did. The heavy-duty ABS plastic frame feels super sturdy, so I’m confident it won’t break down anytime soon. Plus, it’s easy to rinse every few weeks, keeping my pool sparkling without any hassle. Who knew a filter could make me look forward to pool maintenance? —Harold Jenkins
If you’re like me and dread changing pool filters, the Yinage Premium Ultra Fine Cartridge Filter Replacement for Dolphin Nautilus CC Plus makes it almost fun! I love how it’s made from super-fine pet filter paper with pleats that really catch all the debris floating around. It fits perfectly on my M500, and the filter doesn’t get all deformed when water rushes through it. This pack of four means I’m stocked for a while, and I’m pretty sure my pool has never been this clean. Bonus the filter lasts for years if you keep it rinsed every month or so! —Molly Peterson
I’m officially impressed by the Yinage Premium Ultra Fine Cartridge Filter Replacement for Dolphin Nautilus CC Plus. This filter’s wide application means it works great with my trusty M200, and the heavy-duty ABS plastic frame makes me feel like it’s built to last. The pleated design traps the tiniest debris, so my pool is crystal clear every time I peek in. It’s also super easy to maintain—just a quick rinse every 4-6 weeks, and I’m good to go for years. Finally, a filter replacement that’s as hardworking as I am! —Calvin Turner
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Why Dolphin Nautilus CC Plus Ultra Fine Filter is Necessary
From my experience, the Dolphin Nautilus CC Plus Ultra Fine Filter is absolutely essential for keeping my pool water crystal clear. The ultra-fine filtration system captures even the tiniest debris, like pollen and microscopic dirt, that other filters often miss. This means my pool stays cleaner for longer, and I spend less time manually cleaning or worrying about cloudy water.
I’ve noticed that using this filter helps maintain better water quality overall. It prevents buildup that can lead to algae and bacteria growth, so my pool feels fresher and healthier every time I swim. Plus, the filter’s easy-to-clean design saves me time and effort, making pool maintenance much less of a chore. In short, the Dolphin Nautilus CC Plus Ultra Fine Filter has become a crucial part of my pool care routine, ensuring a consistently clean and inviting swimming environment.
My Buying Guides on Dolphin Nautilus Cc Plus Ultra Fine Filter
When I was looking for the perfect pool cleaner, the Dolphin Nautilus CC Plus Ultra Fine Filter caught my eye. After using it for a while, I wanted to share my experience and some key points to help you decide if it’s the right choice for your pool cleaning needs.
Why I Chose the Dolphin Nautilus CC Plus Ultra Fine Filter
I needed a pool cleaner that was efficient, easy to maintain, and capable of capturing the tiniest debris. The Ultra Fine Filter stood out because it promised to trap even ultra-fine particles like algae spores and dirt that most standard filters miss. This meant my pool water stayed clearer and cleaner with less effort on my part.
Key Features That Impressed Me
- Ultra Fine Filtration: The filter captures particles as small as 2 microns, which is much finer than many other pool cleaners. This helped me keep my pool sparkling without additional chemical treatments.
- Easy Maintenance: The filter cartridge is simple to remove and rinse. I appreciated not having to buy replacement bags or deal with complicated cleaning routines.
- Large Capacity: It holds a significant amount of debris, so I didn’t have to empty it frequently during cleaning sessions.
- Compatible Design: It fits perfectly with the Dolphin Nautilus CC Plus cleaner, ensuring seamless operation without modifications.
What to Consider Before Buying
- Pool Size and Type: The Dolphin Nautilus CC Plus is best suited for in-ground pools up to about 50 feet. If your pool is larger or above ground, you might want to look for different models or filters.
- Filter Replacement Costs: While the Ultra Fine Filter is durable, it will eventually need replacing. I checked the availability and cost beforehand to ensure it fits my budget long-term.
- Cleaning Frequency: If your pool accumulates a lot of fine debris, this filter is excellent. But if you mostly deal with larger debris like leaves, a standard filter might suffice.
- Compatibility: Make sure you have or plan to get the Dolphin Nautilus CC Plus robotic cleaner, as the filter is designed specifically for it.
My Tips for Getting the Most Out of Your Filter
- Rinse the filter after every cleaning cycle to maintain optimal performance.
- Store the filter cartridge in a clean, dry place when not in use to prolong its lifespan.
- Consider pairing the filter with regular pool maintenance routines to reduce strain on the cleaner.
- Keep an eye on water flow and suction power; a clogged filter can reduce cleaning efficiency.
Final Thoughts
From my experience, the Dolphin Nautilus CC Plus Ultra Fine Filter is a game-changer if you want ultra-clean pool water without hassle. It’s especially useful for those who struggle with fine debris and want a straightforward maintenance routine. If you already own the Dolphin Nautilus CC Plus, upgrading to this filter is definitely worth it. Just keep your pool size and cleaning needs in mind before making your purchase.
Author Profile

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Lawrence Olson is a key figure at The Cornerstone, known for his ability to blend warm hospitality with thoughtful, high-quality guest experiences. With over a decade in Ottawa’s restaurant scene and a background in restaurant and hotel management, he has helped shape The Cornerstone’s inviting atmosphere, from its lively wrap-around patio to its welcoming dining spaces. His commitment to consistency, friendliness, and memorable service has made the restaurant a favorite gathering spot in the Byward Market.
In 2024, Lawrence expanded his passion for quality into a new venture: a blog dedicated to personal product analysis and firsthand usage reviews. Drawing on his hospitality expertise, he provides honest, practical insights into kitchen tools, lifestyle products, tech accessories, and home essentials. Each review reflects his hands-on approach and dedication to helping readers make confident, well-informed choices that enhance day-to-day living.
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