If you own a Dolphin Quantum robotic pool cleaner, you know that consistent filtration is the key to a crystal-clear pool. Over time, even the best filter panels and baskets collect debris and lose efficiency. Finding the right Dolphin Quantum replacement filters can be the difference between a quick, effortless clean and a pool that never quite sparkles. This guide reviews the top aftermarket and compatible filters available, helping you choose the best option for your specific model and cleaning needs. Whether you need ultra-fine panels for fine particles or a durable basket for larger debris, we have you covered. For more on keeping your pool clean, check out our guide on Dolphin E30 ultra-fine filter options.
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
- Ultra-fine filtration traps even tiny particles for superior water clarity.
- Easy numbered installation system reduces setup time and guesswork.
- Washable and reusable design offers long-term value and eco-friendliness.
- Broad compatibility with many Dolphin and Maytronics robotic pool cleaner models.
- Sturdy build quality withstands regular use and cleaning without tearing.
Cons
- May require more frequent cleaning than standard filters due to ultra-fine mesh trapping more debris.
- Not compatible with all Dolphin models; double-check compatibility before purchase.
- Some users may find the initial fit slightly tight on certain cleaner baskets.
The Henkgo ultra-fine filter panels are a direct replacement for the OEM part 9991467-R4, designed specifically for Dolphin robotic pool cleaners. These pleated cartridge filters are ideal for pool owners who want to maintain sparkling water without frequent skimming. They fit a wide range of models including the S200, Active 20, Proteus DX4, M600, and many more, making them a versatile upgrade for most Dolphin owners.
Standout features include the ultra-fine pleated material that captures sand, gravel, leaves, and even microscopic debris. In real-world use, these filters dramatically improve water clarity compared to standard mesh filters. The numbered panels (1-4) simplify installation: remove in order and replace in reverse, so even first-time users can swap them in minutes. The filters are also washable with a garden hose, retaining their shape and effectiveness after repeated cleanings.
Build quality is reassuringly sturdy. The pleated material holds up well under water pressure and regular cleaning. Each panel measures 9 x 8 x 2.1 inches and weighs just over a pound, making them lightweight yet durable. The white color blends inconspicuously into most pool cleaner baskets. Compatibility is extensive, covering over 25 Dolphin and Maytronics models, which adds significant value for households with multiple cleaners or future upgrades.
One potential drawback is that the ultra-fine mesh may clog faster than coarser filters, especially in heavily debris-laden pools. This means more frequent cleaning sessions, but the ease of rinsing offsets this inconvenience. Additionally, while compatibility is broad, it is not universal, so buyers should verify their specific model before ordering. The initial fit on some cleaner baskets might feel snug, but this ensures a secure seal.
Overall, the Henkgo ultra-fine filter panels offer an excellent balance of performance, durability, and affordability. They deliver professional-grade filtration at a fraction of the OEM cost. For Dolphin pool cleaner owners seeking clearer water and less maintenance, these filters are a smart investment. The simple installation and reusable design make them a practical choice for any pool season.
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
Compatibility with Your Dolphin Model
The most important factor is ensuring the filter fits your specific Dolphin cleaner. Models like the Quantum, Active 20, S200, and Proteus DX4 use different filter designs. Always confirm the part number (such as 9991467-R4 or 9991432-R4) matches your robot. The Dolphin Quantum replacement filters page lists compatible models for each product. Using the wrong filter can lead to poor performance or even damage.
Filtration Type: Ultra-Fine vs. Standard
Ultra-fine filters, like those from ULTICOR and Gearwiz, capture microscopic particles such as pollen, fine sand, and algae spores. They are ideal for maintaining sparkling water. Standard filters handle larger debris like leaves and twigs. For a pool that sees heavy use, consider a set of ultra-fine panels for routine cleaning and a coarse basket for initial debris removal. Our review of Dolphin E20 ultra-fine filters highlights the benefits of fine filtration.
Build Quality and Durability
A filter that deforms or tears after a few uses is a waste of money. Look for filters with heavy-duty ABS plastic frames and reinforced pleated filter paper. Brands like Funmit and Kerneed use durable materials that withstand regular rinsing and last for years. Avoid cheap, flimsy options that may not hold up under the water flow of your Dolphin cleaner.
Ease of Cleaning and Maintenance
All filters require periodic rinsing to maintain performance. Some, like the Poolzilla ultra-fine panels, pop out easily and can be cleaned with a garden hose. The number of panels in a set also matters; a four-panel set like the Qagea 9991467-R4 makes replacement straightforward. Choose filters that are simple to remove and wash, as this encourages regular upkeep. For more accessories, visit our pool accessories category.
Final Thoughts
Choosing the right Dolphin Quantum replacement filters ensures your pool stays clean with minimal effort. For those seeking the highest level of fine filtration, the Ulticor Ultra Fine Filter Basket Compatible offers exceptional microfiltration technology and broad compatibility with many Dolphin models. If you prefer a budget-friendly panel set that is easy to replace, the 9991467-R4 Ultra Fine Filter Panels from Qagea provides excellent value and reliable performance. Both options will extend the life of your pool cleaner and keep your water inviting all season long.
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 Quantum filters?Most manufacturers recommend rinsing filters every 4 to 6 weeks and replacing them every 2 to 3 years, depending on usage and pool conditions. In 2026, with many pools seeing heavy use, annual replacement may be wise for optimal performance.
Are aftermarket Dolphin filters as good as OEM?Many aftermarket filters, such as those from ULTICOR and Gearwiz, use high-quality materials that match or exceed OEM standards. They are often more affordable and offer similar filtration efficiency. Always check reviews and compatibility before purchasing.
Can I wash Dolphin filters in a dishwasher?No, dishwasher detergents and high heat can damage the filter material. Always rinse filters by hand with a garden hose. For tough debris, use a gentle spray and avoid scrubbing the pleated paper. For more tips, visit our replacement filters guide.
What is the difference between a filter basket and filter panels?A filter basket is a single, pre-assembled unit that drops into the cleaner, while filter panels are individual cartridges that slide into a basket frame. Baskets are easier to replace, while panels allow you to replace only worn sections. Both serve the same purpose of trapping debris.
