Why a Replacement Pool Cleaner Filter Basket Matters

Your robotic pool cleaner works hard to keep your pool sparkling, but its filter basket is the unsung hero. Over time, filter baskets wear out, tear, or lose their fine-mesh efficiency, allowing debris to circulate back into your pool. A high-quality replacement pool cleaner filter basket ensures optimal filtration, extends your cleaner’s lifespan, and saves you money on costly repairs. Whether you own a Dolphin, Aiper, or Chasing model, choosing the right replacement filter basket is essential for maintaining clear, healthy water.

Top Replacement Pool Cleaner Filter Baskets: In-Depth Review

We’ve researched and reviewed the best replacement pool cleaner filter baskets on the market, focusing on compatibility, filtration efficiency, durability, and ease of installation. Below, we break down the top contenders to help you make an informed decision.

Ulticor Ultra Fine Filter Basket Compatible

The Ulticor Ultra Fine Filter Basket Compatible is a premium aftermarket replacement designed for a wide range of Dolphin robotic pool cleaners, including S50, S100, Active 10/15, Echo, T15, T25, Proteus DX3, and many more. It features high-quality microfiltration technology that captures even the smallest particles, keeping your pool exceptionally clean. Note that it is not compatible with Nautilus CC Pro or Nautilus CC Supreme. If you have an older version of Active 10 or S50, you may need to remove a plastic piece inside the robot for proper fit.

Ultra-Fine Filter Basket Part No. 9991460-R1

The Ultra-Fine Filter Basket Part No. 9991460-R1 is another excellent choice, offering a 50-micron mesh that captures fine debris. It is designed to fit Dolphin models like S50, S100, Active 10/15, T15/T25, Proteus DX3, Nautilus CC, Encore E10/E20, and more. Its anti-crack design lasts 2-3 pool seasons, making it 3 times more durable than generic filters. The exact 1:1 dimensions ensure a perfect fit.

Ultra-Fine Filter Basket Part 9991460-r1 (REEPLAR)

REEPLAR offers the Ultra-Fine Filter Basket Part 9991460-r1, which is compatible with many Dolphin models such as Active 10, E10, Echo, T15, Proteus DX3, Saturn (new), Cayman, Escape, S50, Encore, Solo, Nautilus CC, and Advantage. This ultra-fine filter removes hair, dust, and diatoms effectively and can last 2-3 years. The package includes black trays and more than 4 ultra-fine filters, making it a complete replacement unit. It is not compatible with Nautilus (old), Nautilus CC Pro, or Nautilus CC Supreme.

Ultra-Fine Filter Basket Part Number 9991460-r1 (Compatible with Dolphin Nautilus CC)

This Ultra-Fine Filter Basket Part Number 9991460-r1 is another great option, compatible with Dolphin S50, S100, Active 15, T15, T25, E10, Explorer E20, Nautilus CC, Echo, Encore, Solo, Proteus DX3, Cayman, Escape, Advantage, Prowler 917, and Warrior SL. It features ultra-fine mesh to capture even the smallest debris, ensuring your pool stays clear. These filters can last 2-3 years. It is not compatible with Nautilus (old), Nautilus CC Pro, or Nautilus CC Supreme.

Chasing Hyper-fine Filter Basket

For owners of Chasing Hydro3, Hydro3S, Hydro4, or Hydro4SE, the Chasing Hyper-fine Filter Basket is an essential replacement part. It keeps your cleaner operating at peak efficiency, and having a spare on hand ensures you never miss a cleaning cycle.

Gearwiz Ultra Fine Filter Basket Compatible

The Gearwiz Ultra Fine Filter Basket Compatible is designed for Dolphin models like Active 20, Active 30, Active 30i, Active 40, Active 60, Explorer E30, Explorer E50, Explorer E70, M600, Mercury, Premium, Proteus DX4, Triton PS, and many more. It uses ultra-fine filtration to capture fine debris, and its part number is 9991458-R1. Ensure your model is listed before purchasing.

FEATCH 2-Pack 3µm Filter Basket Insert for Aiper

The FEATCH 2-Pack 3µm Filter Basket Insert for Aiper is specifically designed for Aiper Scuba S1 robotic pool cleaners (not compatible with S1 Pro). This filter-only replacement (white frame not included) features an ultra-fine 3 µm mesh that captures microscopic debris like silt and fine sand. The 2-pack offers great value, ensuring you always have a clean spare ready. Installation takes just seconds.

Poolzilla Pool Cleaner Ultra-Fine Filter Basket

The Poolzilla Pool Cleaner Ultra-Fine Filter Basket is compatible with part #9991460-R1 and fits Dolphin models such as Active 15, Advantage, Cayman, E10, Explorer E20, Echo, Encore, Escape, Nautilus CC, Proteus DX3, Prowler 910/917, S50, S100, Solo, T15, T25, and Warrior SL. It includes one replacement filter basket. It is not compatible with Nautilus (old), Nautilus CC, Triton, Triton PS, or Triton PS Plus.

Fiitzn Ultra Fine Filtration Basket Compatible

Finally, the Fiitzn Ultra Fine Filtration Basket Compatible is designed for Dolphin S50, S100, Active 15, Echo, T15, Proteus DX3, E20, Cayman, Escape, Nautilus CC, Encore, E10, Solo, and Advantage. It matches the original part number 9991460-R1 and features ultra-fine filtration. With proper use, these filters can last 2-3 years.

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Editor's Pick

Ulticor Ultra Fine Filter Basket Replacement

ULTICOR
9.9 /10
AI Score
AI score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the AI tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
This aftermarket filter basket from Ulticor uses advanced microfiltration to capture fine debris, keeping your pool cleaner and water clearer. Best for owners of compatible Dolphin robotic cleaners seeking a high-quality, cost-effective replacement.
Pros & Cons

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.
Detailed Review

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.

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Fiitzn Ultra Fine Filtration Basket for Dolphin

Fiitzn
9.6 /10
AI Score
AI score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the AI tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
The Fiitzn Ultra Fine Filtration Basket is a durable replacement filter for many Dolphin robotic pool cleaners, using microfiltration to trap fine debris without clogging quickly. Ideal for pool owners who want long-lasting performance and easy maintenance.
Pros & Cons

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
Detailed Review

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.

Specifications

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

How to Choose the Right Replacement Pool Cleaner Filter Basket

When selecting a replacement pool cleaner filter basket, consider the following criteria to ensure you get the best fit and performance:

  • Compatibility: Always check that the filter basket is compatible with your specific robotic pool cleaner model. Refer to the manufacturer’s list of compatible models before purchasing.
  • Filtration Efficiency: Look for ultra-fine mesh (e.g., 3 µm, 50 micron) to capture fine debris like silt, sand, and algae. Higher filtration efficiency means cleaner water.
  • Durability: Choose baskets made from anti-crack, high-quality materials that can withstand regular use and last multiple seasons. Some products offer 2-3 years of lifespan.
  • Ease of Installation: A good filter basket should be easy to install and remove, allowing for quick swaps and cleaning. Some come in multi-packs for convenience.

Looking for more information on robotic pool cleaner filters? Check out our other in-depth guides:

For a complete selection of replacement filters, visit our Replacement Filters category page.