If you own a Dolphin Quantum robotic pool cleaner, you know how important it is to keep the filters clean for optimal performance. But standard filters may let fine particles like algae and dirt slip through, leaving your pool water less than crystal clear. Upgrading to ultra fine filters can make a world of difference. These specialized cartridges trap even the smallest debris, from dead algae to fine sand, ensuring your pool stays sparkling clean with less effort. In this guide, we review nine top-rated Dolphin Quantum ultra fine filter replacements, ranging from pleated panels to basket filters. Whether you need a direct OEM replacement or an aftermarket upgrade, we have options that fit your needs. For more on similar upgrades, check out our review of Dolphin E30 ultra fine filters.
Pros
- High-efficiency microfiltration captures fine dirt, sand, and leaves for pristine pool water.
- Works with a wide range of popular Dolphin robot models, reducing the need for multiple filter types.
- Easy to clean and maintain with no special tools required.
- Affordable price compared to manufacturer replacement filters.
- Solid build quality with lightweight yet sturdy plastic construction.
Cons
- Not compatible with Dolphin Nautilus CC Pro or CC Supreme models, limiting its use for newer variants.
- Older versions of Active 10 or S50 may require removal of a plastic piece for proper fit, which could be inconvenient for some users.
- As an aftermarket part, it may not perfectly match OEM quality or warranty coverage.
The Ulticor Ultra Fine Filter Basket is an aftermarket replacement designed specifically for a wide array of Dolphin robotic pool cleaners. It is an ideal choice for pool owners who already own compatible models such as the Dolphin S50, S100, Active 10/15, Echo, T15, T25, Proteus DX3, Saturn, Cayman, Escape, and others. This basket is not intended for the Nautilus CC Pro or Supreme versions, so buyers should verify compatibility before purchasing.
What sets this filter apart is its microfiltration technology, which captures even the tiniest debris particles. In real-world use, this translates to a noticeably cleaner pool with clearer water, as fine dirt, sand, and pollen are effectively trapped. The basket is easy to rinse and clean every four to six weeks, maintaining peak performance without hassle. Users report that it fits snugly and works reliably cycle after cycle.
The design is straightforward: a white, lightweight plastic basket measuring roughly 9x5x7 inches. Build quality feels solid for an aftermarket part, though it may not have the exact finish of an OEM component. The inclusion of installation tips for older Active 10 or S50 units (which may need a small internal plastic piece removed) shows attention to compatibility details. A video guide is available upon request to assist with that adjustment.
Potential drawbacks are mostly centered on fitment limitations. Owners of Nautilus CC Pro or Supreme will need to look elsewhere. Also, the need to modify older robots could be a minor inconvenience for those not comfortable with simple DIY tasks. However, for the vast majority of compatible users, installation is plug-and-play.
Overall, the Ulticor Ultra Fine Filter Basket offers excellent value for money. It delivers superior filtration at a lower price than official replacements, while covering a wide range of popular Dolphin models. If you own one of the listed robots and want to keep your pool sparkling clean without breaking the bank, this filter is a smart buy.
Pros
- Microfiltration prevents clogging and maintains strong suction for thorough cleaning
- Sturdy ABS construction ensures durability even in heavy-duty use
- Wide compatibility saves hassle of finding exact match for various Dolphin models
- Simple maintenance with periodic rinsing; no tools required
- Cost-effective alternative to OEM parts with comparable performance
Cons
- May require more frequent rinsing if the pool is heavily soiled or has fine debris
- Only one basket included; some pool owners may need to purchase additional for larger pools
- Not compatible with all Dolphin models; verify compatibility list before purchase
The Fiitzn Ultra Fine Filtration Basket is a replacement filter designed for a wide range of Dolphin robotic pool cleaners, including models like the S50, Active 15, Echo, Nautilus CC, Encore, E10, E20, Proteus DX3, Solo, and Advantage. This part (9991460-R1) is ideal for pool owners seeking an affordable, high-performance alternative to the original filter. It is especially suited for those who want to improve water clarity by trapping fine particles without sacrificing cleaning efficiency.
The standout feature of this basket is its microfiltration technology, which captures small debris while allowing larger particles to pass through. This design prevents the filter from clogging quickly, ensuring consistent suction and longer cleaning cycles. In real-world use, this means less downtime for rinsing and more effective pool maintenance, even in dirty conditions. The basket maintains strong performance over weeks of use before needing a quick rinse.
Build quality is solid thanks to the ABS plastic frame, which resists cracking and deformation under pressure. The filter layer is securely supported, reducing the risk of tearing during operation. Installation is straightforward: it fits exactly like the original part, so no modifications or adapters are needed. Rinsing every 4-6 weeks keeps it working optimally, and with proper care, the basket can last 2-3 years, offering excellent value.
One potential drawback is that in extremely dirty pools, the filter may need more frequent rinsing to maintain flow. Additionally, the package includes only one basket, so owners of larger pools might need to buy a second. Also, while compatibility is broad, it does not cover every Dolphin model, so double-checking the list is wise. These are minor trade-offs for the price and performance.
Overall, the Fiitzn Ultra Fine Filtration Basket delivers on its promise of efficient fine debris capture and durability. It is a smart upgrade or replacement for Dolphin pool cleaner owners who want to keep their water crystal clear without breaking the bank. The combination of microfiltration, sturdy construction, and broad compatibility makes it a reliable choice for routine pool care.
Dimensions: 9.1 x 7.1 x 5.3 inches
Weight: 1 pound
Material: ABS plastic frame with microfiltration mesh
Compatibility: Dolphin models S50, S100, Active 15, Echo, T15, Proteus DX3, E20, Cayman, Escape, Nautilus CC, Encore, E10, Solo, Advantage
Replaces OEM Part: Maytronics 9991460-R1
Maintenance: Rinse every 4-6 weeks; expected lifespan 2-3 years with proper care
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: Choosing the Right Ultra Fine Filter for Your Dolphin
Compatibility with Your Dolphin Model
The Dolphin Quantum shares its filter size with many other robots in the same generation. Models like the S200, S300i, Triton PS, Warrior SE, and Explorer E30 all use the same filter size (part numbers 9991467-R4 for panels and 9991458-R1 for baskets). However, some filters are model-specific. For example, the Ulticor Ultra Fine Filter Basket Compatible is designed for older models like the S50 and Active 15, while the sixcow Ultra Fine Filters Panels (4PK) are made for newer robots including the Quantum. Always verify compatibility before purchase. For a full list of compatible filters, see our replacement filters category.
Filtration Efficiency: Pleated vs. Standard
Ultra fine filters typically use a pleated, multi-layer design that captures particles as small as a few microns. This is a significant upgrade from standard mesh filters that let fine dirt pass through. Products like the sixcow panels feature a three-layer pleated structure with a waffle-like surface that maximizes surface area. The Gearwiz basket uses advanced microfiltration technology to trap debris without restricting water flow. If you frequently battle algae or fine sediment, an ultra fine filter is a must. For more insights on filtration technology, explore our guide on smart pool cleaners.
Build Quality and Durability
The frame material is crucial for long-term durability. Most filters we reviewed use reinforced ABS plastic, which resists warping and cracking even under constant water pressure. For instance, the Qagea 9991467-R4 Ultra Fine Filter Panels are precision-molded for a snug fit, while the SUNRRA filters have a heavy-duty ABS frame that can last 2-3 years with proper care. Avoid filters with flimsy plastic that may degrade quickly. Regular rinsing every 4-6 weeks extends the lifespan of any quality filter.
Ease of Cleaning and Maintenance
All the filters in our lineup are washable and reusable. The panels pop out easily, and a garden hose blast is usually enough to remove trapped dirt. Some, like the CLLOMAGY panels, are numbered 1-4 for easy installation order. Regular cleaning every 4-6 weeks keeps them performing optimally. The basket filters, like the Gearwiz, can be rinsed just as easily. Proper maintenance extends the life of your filters and maintains your robot’s suction power.
Final Thoughts
After evaluating all nine products, we found that the Ultra Fine Filters Panels (4PK) from sixcow offer exceptional value with their high-efficiency pleated design and broad compatibility. For those needing a robust filter basket, the Ulticor Ultra Fine Filter Basket Compatible is a top contender with excellent build quality. Both are excellent choices to keep your Dolphin Quantum performing at its best.
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Frequently Asked Questions
What models are compatible with Dolphin Quantum ultra fine filters?
Many filters listed here fit the Dolphin Quantum, as well as models like the S200, S300i, Triton PS, Warrior SE, and others. Always check the product description for a full compatibility list. For the Quantum, part numbers 9991467-R4 and 9991458-R1 are commonly used. For more details on compatible models, see our guide on best dolphin E20 ultra fine filter replacements.
How often should I clean the ultra fine filters?
We recommend rinsing your filters every 4-6 weeks during the swimming season. If your pool is heavily used or has lots of debris, more frequent cleaning may be needed. Regular cleaning ensures optimal filtration and extends filter lifespan.
Are these filters washable and reusable?
Yes, all the filters we reviewed are washable and reusable. Simply remove them from the robot, rinse thoroughly with a garden hose, and let dry before reinserting. They are designed to last 2-3 years with proper care.
Will ultra fine filters reduce suction power?
Ultra fine filters are denser, but they are designed to maintain good water flow. In fact, because they trap more dirt, they can actually improve performance by keeping the robot’s internals cleaner. However, if not cleaned regularly, they can clog and reduce suction. That is why regular rinsing is important.
How long do ultra fine filters last?
With proper care and regular cleaning, these filters can last 2-3 years. The pleated design is durable, but if you notice tears or a drop in performance, it is time to replace. Check out our replacement filters collection for more options.
