Nothing disrupts a clean pool faster than a clogged filter. If your Dolphin Nautilus CC Plus robotic cleaner is leaving debris behind or losing suction, it likely needs new filter cartridges. With so many options on the market, finding the right replacement can feel overwhelming. In this guide, we break down eight top-rated Dolphin Nautilus CC Plus replacement filters for 2026, comparing compatibility, filtration efficiency, and overall value. Whether you need ultra-fine filters for crystal-clear water or spring filters for heavy seasonal debris, we have you covered.
For those also interested in compatible models, check our detailed review on Dolphin Nautilus CC replacement filters for broader options.
Pros
- Comprehensive all-in-one replacement kit for essential wear parts.
- Easy installation with no special tools required, suitable for any pool owner.
- Includes two types of filters to handle both large and fine debris.
- Improves climbing ability and overall cleaning efficiency.
- Cost-effective way to extend the lifespan of your robotic cleaner.
Cons
- Compatible only with the Dolphin Nautilus CC Plus model, not suitable for other cleaners.
- May not include other potential wear parts like seals or motor brushes for a complete overhaul.
- No user reviews yet, so real-world performance feedback is limited.
The Zymurgoes Tune-Up Kit is a purpose-built replacement parts bundle for the Maytronics Dolphin Nautilus CC Plus robotic pool cleaner. This kit targets owners who want to restore their cleaner's peak performance without the hassle of sourcing individual parts. It is an excellent choice for maintaining a clean pool without professional help.
Standout features include both fine and ultra-fine filter cartridges, allowing the cleaner to trap everything from leaves and twigs to fine sand and dust. The included grey brushes provide aggressive scrubbing, while the climbing rings and tracks improve traction on walls and floors. Together, these parts significantly enhance debris collection and overall cleaning coverage.
The kit's components are built to match OEM specifications, ensuring a snug fit and reliable operation. The white color is standard and unobtrusive. Installation is straightforward, with all parts designed to snap or slide into place without tools. However, some users may find the track replacement a bit tricky if not following instructions closely.
A potential drawback is the limited compatibility: this kit only works with the Dolphin Nautilus CC Plus model. Additionally, while it covers the most common wear items, it does not include seals or internal parts that may also need replacement over time. Since no consumer reviews are available yet, long-term durability remains unverified.
Overall, the Zymurgoes Tune-Up Kit offers a convenient and cost-effective solution for maintaining a Dolphin Nautilus CC Plus. It is a solid investment for pool owners who want to keep their cleaner running like new. If you own this specific model and notice declining performance, this kit is a smart upgrade.
Pros
- Superior filtration from ultra fine pleated material, outperforming standard non-pleated filters.
- Durable ABS frame withstands regular use and chemical exposure without cracking.
- Cost-effective 4-pack reduces per-cartridge cost and frequency of replacement.
- Easy to clean and reuse, extending the life of each filter panel.
- Backed by a 1-year warranty for added confidence.
Cons
- Not compatible with older Nautilus CC, Nautilus (original), or Triton models; verify your robot before ordering.
- Some users may find the initial fit slightly snug in certain robot models, though it settles over time.
- Pleated filters may require more frequent rinsing in heavy-debris pools compared to coarse mesh options.
The SUNRRA Ultra Fine Filters are a versatile replacement option for a wide range of Dolphin robotic pool cleaners, including the Nautilus CC Plus, CC Supreme, M200, M400, M500, and many others. If you own one of these popular Maytronics models and want to improve water clarity, this 4-pack of pleated cartridges is a smart upgrade.
What sets these filters apart is their ultra fine pleated construction. Unlike standard non-pleated cartridges that let fine sediment slip through, the dense pleats trap even tiny particles like algae, pollen, and dust. The result is noticeably clearer pool water and a cleaner floor after each cycle. In real-world use, the filtration performance is excellent, especially for pools that struggle with cloudy water.
The build quality is solid: the frame is made from heavy-duty ABS plastic that resists cracking and tearing, even after repeated rinsing and seasonal storage. SUNRRA claims a lifespan of 2-3 years, which is reasonable if you clean them every 4-6 weeks. The 4-pack also means you have spares on hand, saving you from last-minute replacements.
One important note: these filters are not compatible with the original Nautilus CC, older Nautilus, or Triton series models. Always double-check your robot's model number before purchasing. Also, because the pleats are so fine, they may clog faster in pools with heavy leaf debris; you may need to rinse them more often than coarse mesh filters.
Overall, the SUNRRA Ultra Fine Filters offer excellent value for Dolphin owners who want premium filtration without paying premium prices. The 1-year warranty adds peace of mind, and the 4-pack ensures you're set for multiple seasons. If your robot is compatible, this is a highly recommended upgrade for crystal-clear pool water.
Pros
- Designed to replace Maytronics 9991432-R4 for many Dolphin robotic cleaner models
- Ultra fine pleated media traps both small particles and larger debris effectively
- Reinforced ABS frame keeps the filter stable during operation
- 4 pack provides good value and a longer interval before you need to reorder
- Simple maintenance with periodic rinsing every 4 to 6 weeks
Cons
- Not compatible with many Dolphin models such as Nautilus CC, M600, S200, Triton PS, and others, so check fit carefully before buying
- Aftermarket part is not an original Maytronics product, which may matter to some buyers
- No customer reviews are available yet, so long-term real-world performance is less proven
The Funmit M400 Ultra Fine Cartridge Filter is a 4 pack replacement designed for the Dolphin Nautilus CC Plus and a wide range of compatible robotic pool cleaners. It replaces Maytronics part 9991432-R4, making it a practical option for pool owners who want dependable filtration without the premium price of the OEM part.
The standout feature is the ultra fine pleated filter paper, which captures sand, leaves, hair, and other debris while maximizing surface area. The heavy duty ABS plastic frame keeps the pleats stable during operation and prevents the filter from deforming under water flow, so the cleaner maintains strong suction and consistent performance.
Maintenance is straightforward: rinsing the filter every 4 to 6 weeks is enough to keep it working well, and with proper care each filter can last 2 to 3 years. The 4 pack is especially convenient for owners who clean frequently or have a large pool, because there is always a fresh filter on hand.
The main drawback is compatibility. This filter does not fit several popular Dolphin models, including Nautilus CC, M600, S200, Triton PS, and others, so it is essential to verify your pool cleaner model before purchasing. As an aftermarket part, it also does not carry the original manufacturer branding, though the build quality is solid for the price.
Overall, the Funmit M400 filter replacement offers strong filtration, durable construction, and good value for owners of compatible Dolphin robotic cleaners. If you confirm the fit first, this 4 pack is a smart, budget friendly way to keep your pool clear all season.
Color: White
Dimensions: 10.5 x 6.375 x 10.5 inches
Package includes: 4 cartridge filters
Replaces Maytronics part 9991432-R4
Compatible with Dolphin Nautilus CC Plus, M400, M500, M200, M4, M5, Wave 65, Wave 90, C3, C4, Oasis Z5i, Aquarius XL, Liberty, Odyssey, Sigma, Triton Plus (old)
Buying Guide for Dolphin Nautilus CC Plus Replacement Filters
Filter Type: Ultra-Fine vs. Fine vs. Spring
The first decision is the filter material. Ultra-fine pleated filters capture microscopic particles like sand, algae, and pollen, leaving water sparkling. They are ideal for routine maintenance. Fine filters (often included as standard) are good for general debris but may miss tiny particles. Spring filters, like the Kerneed Spring Filter Cartridges, use a mesh screen designed for the first few cleanings of a heavily soiled pool—they trap large leaves and twigs without clogging quickly. Consider your pool’s typical dirt load before choosing.
Compatibility: Ensure It Fits Your Model
Not all filters labeled for the Nautilus CC Plus work with older Nautilus CC models. Check that the replacement specifically lists Nautilus CC Plus (and not just Nautilus CC). Many brands also fit Supreme M4, M5, M200, M400, M500, and others. For instance, the Poolzilla Ultra-Fine Filters explicitly exclude older Nautilus CC and Triton models. Always verify your cleaner’s model number against the compatibility list before purchasing. For a deeper dive on model-specific filters, read our ultra-fine filter guide for Dolphin Nautilus CC.
Build Quality and Durability
The frame material and pleat density determine how long the filters last. Look for heavy-duty ABS plastic frames that resist cracking under water pressure. Premium options like the SUNRRA and Funmit filters feature reinforced frames that can last two to three years with proper care. Pleated filter paper should be dense but not too thick—enough to trap debris yet allow water flow. Washable and reusable filters save money over time; a good rinse every four to six weeks extends their life significantly.
Ease of Maintenance
All the filters we reviewed are designed to be rinsed clean with a garden hose. However, some models have more tightly packed pleats that can hold onto debris, requiring a bit more effort. The ultra-fine filters from Kerneed and K Trends are noted for easy cleaning. For heavy use, consider the SUNRRA 8-pack which gives you extra sets to rotate—you can clean a batch while using another. Regular maintenance is key; neglecting it reduces cleaning performance and may force early replacement. Check out our fine filter replacements for Dolphin Nautilus CC for more tips on keeping filters in top shape.
Final Thoughts
After comparing all eight Dolphin Nautilus CC Plus replacement filters, our top recommendations cater to different needs. For pool owners who want maximum filtration and long-term value, the SUNRRA Ultra Fine Filters (8-pack) offer excellent pleat density and a durable ABS frame at an unbeatable per-filter price. If you prefer a budget-friendly, ultra-fine option that still delivers high performance, the Poolzilla Pool Cleaner Ultra-Fine Filters provide reliable cleaning at a lower upfront cost. Both are washable, reusable, and widely compatible with your Nautilus CC Plus.
Related Guides
- Best Pool Robot Replacement Brush for Algae in 2026
- Replacements for Sparkling Water in 2026
- WYBOT Replacement Brush Review
Frequently Asked Questions
How often should I replace Dolphin Nautilus CC Plus filters?
With regular rinsing every four to six weeks, these filters can last two to three years. Replace them when the pleats become frayed, the frame cracks, or you notice a drop in suction or water clarity. In 2026, high-quality options like the Kerneed M400 Ultra Fine filters maintain performance longer.
Can I use these filters in a Dolphin Nautilus CC (without Plus)?
Most filters labeled for Nautilus CC Plus are not compatible with the older Nautilus CC due to different dimensions. Always check the product description: the Nautilus CC filter basket replacements are model-specific. If you own a Nautilus CC, look for filters explicitly designed for that series.
What is the difference between ultra-fine and spring filters?
Ultra-fine filters use densely pleated fabric to capture tiny particles like sand and algae. Spring filters have a mesh screen that catches larger debris (leaves, twigs) without clogging, making them ideal for the first few cleanings after a storm or opening the pool. For routine use in 2026, ultra-fine filters are generally preferred for crystal-clear water.
Are these filters interchangeable with other Dolphin models like M400 or M500?
Yes, most of these filters are compatible with M200, M400, M500, Supreme M4, Supreme M5, and several others. For a complete list, refer to the product specifications. The Funmit M400 Ultra Fine Cartridge Filter, for example, fits multiple models beyond the Nautilus CC Plus.
