You have an in-ground pool and you are tired of scrubbing walls by hand or dealing with a pressure cleaner that misses spots. The Dolphin Cayman line promises automated deep cleaning, but with several models and aftermarket filters on the market, choosing the right one can feel overwhelming. This guide reviews the top Dolphin robotic pool cleaners and compatible accessories to help you find the perfect fit for your pool.
Whether you need a smart, Wi-Fi-connected unit or a budget-friendly option that still climbs walls, we have you covered. We also look at aftermarket filter baskets that can upgrade your cleaner’s performance. For more on wall-climbing capabilities, check out our guide on best dolphin robotic pool cleaners for wall climbing.
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
- Wall climbing feature cleans both floors and walls, reducing manual scrubbing.
- Active scrubbing brush provides deep cleaning without damaging pool surfaces.
- Easy top-load filter basket simplifies maintenance.
- Plug and play operation makes it user friendly, no complicated installation.
- Dolphin brand reputation for reliability and performance.
Cons
- Designed for in-ground pools only, not suitable for above-ground pools.
- No remote control or smartphone app for manual direction, relies on autonomous navigation.
- Initial investment may be higher compared to manual pool cleaning tools.
The Dolphin Nautilus CC Plus is a fully automatic robotic pool cleaner specifically engineered for in-ground pools up to 40 feet in length. It is best suited for pool owners who want a hands free cleaning solution that handles both floors and walls with minimal intervention.
Standout features include its active scrubbing brush which combines wall climbing power with a continuous scrub action. This means it loosens and removes stubborn dirt, algae, and debris from pool surfaces without the need for manual brushing. The top load filter basket is another highlight, allowing quick removal of captured debris for consistently clear water.
In real world performance, the plug and play design truly simplifies pool maintenance. Simply connect the power supply, drop the unit into the water, and let it run for about two hours. Its smart navigation ensures thorough coverage even around obstacles and irregular shapes. The build quality reflects Dolphin's40 plus year legacy in pool care, using durable materials to withstand constant submersion and chemical exposure.
One potential drawback is its limitation to in ground pools only, so owners of above ground pools will need a different model. Also, there is no manual remote control, but the autonomous navigation is generally effective. At just over20 pounds, it is easy to lift but may be heavy for some users. Overall, the NautilusCC Plus offers exceptional value for those seeking a reliable, low maintenance robotic cleaner.Final verdict: For in ground pool owners who value convenience and thorough cleaning, the Dolphin Nautilus CC Plus is a top choice. Its wall climbing scrubbing action, easy filter access, and set and forget operation make it a worthwhile investment that saves time and effort.
Brand: Dolphin
Model: Nautilus CC Plus
Color: Black
Dimensions: 16 x 10 x 16 inches
Weight: 20.8 pounds
Compatibility: In ground pools up to 40 feet in length
Cleaning Cycle: Approximately 2 hours
Pros
- Powerful HyperBrush removes stubborn dirt and algae effectively
- Superior wall climbing with HyperGrip tracks for complete cleaning
- Easy maintenance with top-loading filter cartridge
- Smart navigation reduces cleaning time and energy usage
- Comes with a solid 2-year warranty
Cons
- Higher price point compared to basic pool cleaners
- May be overkill for pools with minimal debris or light use
- Requires compatible pool surface for optimal track performance
The Dolphin Cayman is a premium robotic pool cleaner engineered for inground pools that suffer from stubborn contaminants like algae, cloudy water, and buildup. Unlike standard vacuum cleaners, the Cayman targets the root of the problem with its advanced HyperBrush technology. It is best suited for pool owners who demand a deep clean without manual effort and are willing to invest in a high-performance solution.
Standout features include the HyperBrush, which spins twice as fast as conventional brushes to dislodge stuck-on debris from walls and floors. This is complemented by HyperGrip rubber tracks that provide exceptional traction, preventing slipping even on smooth surfaces. The SmartNav 2.0 system ensures efficient navigation, covering the entire pool systematically for thorough cleaning.
Design-wise, the Cayman is built for convenience. The top-access filter compartment allows you to lift the hatch and remove the cartridge handle without mess or bending. Its robust construction and black finish make it a durable addition to your pool equipment. The 2-year warranty adds confidence in its longevity.
Potential drawbacks include a higher price point, which may be a barrier for budget-conscious buyers. Additionally, the advanced features might be unnecessary for pools with light debris loads. The rubber tracks perform best on certain pool surfaces, so compatibility should be checked.
Overall, the Dolphin Cayman is a top-tier robotic cleaner that delivers on its promise of deep cleaning and ease of use. If you struggle with persistent pool contaminants and want a set-and-forget solution, this is a worthy investment. Its combination of powerful scrubbing, smart navigation, and user-friendly design makes it a standout in the robotic pool cleaner market.
Brand: Dolphin
Model: Cayman
Category: Robotic Pool Cleaner
Dimensions: 22 x 13 x 18 inches
Color: Black
Warranty: 2 Years
Key Technology: HyperBrush, HyperGrip Rubber Tracks, SmartNav 2.0
Pros
- Exceptional debris capacity with top-loading, easy-to-empty filter.
- Powerful scrubbing action removes tough algae and stuck-on grime.
- Intelligent navigation reduces cleaning time and covers the pool thoroughly.
- Lightweight handling and quick water release simplify maintenance.
- Two-year warranty provides confidence in build quality.
Cons
- Weight listed as 14 lbs in description but specifications show 24 lbs, which may be confusing.
- Lacks remote control or app connectivity for manual control or scheduling.
- Maximum pool length of 33 feet limits use for larger pools.
The Dolphin Escape robotic pool cleaner is designed for both above ground and in-ground pools up to 33 feet, making it a versatile option for many homeowners. It targets vinyl, fiberglass, and gunite surfaces, and its affordable price point offers professional-grade cleaning without the high cost.
Standout features include a massive top-loading cartridge filter that holds 60% more debris than standard models, reducing the need for frequent emptying. The HyperBrush, driven by dual motors, aggressively scrubs and vacuums away algae, sand, and leaves, while HyperGrip continuous tracks ensure steady movement on all pool floors and walls.
SmartNav 2.0 navigation scans the pool and maps an efficient cleaning route, avoiding obstacles and ensuring complete coverage. The cleaner weighs only 14 pounds (as per description) and features a quick water release system, making it easy to lift and rinse after each use. The build quality feels solid, backed by a two-year warranty.
Potential drawbacks include a weight discrepancy: the listed weight is 14 lbs, but the shipping weight is 24 lbs, which may imply the unit is heavier than expected. It also lacks smart connectivity features like remote control or app scheduling, which some competitors offer. Additionally, it is not suitable for pools larger than 33 feet.
Overall, the Dolphin Escape is a strong performer for medium-sized pools, delivering excellent cleaning power and easy maintenance at a reasonable price. Its top-loading filter and intelligent navigation make it a reliable choice for pool owners who want a hassle-free cleaning experience.
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
- Wi-Fi connectivity allows scheduling and monitoring from your phone
- Waterline scrubber eliminates manual cleaning of pool edges
- Active scrubbing brush removes dirt without damaging surfaces
- Dual drive handles tight corners and obstacles with ease
- Top load filter makes maintenance quick and mess free
Cons
- High initial investment compared to basic pool cleaners
- Requires stable Wi-Fi connection for full smart features
- May be overkill for smaller or above ground pools
The Dolphin Nautilus CC Supreme Wi-Fi is a premium robotic pool cleaner designed for in ground pools up to 50 feet. It is ideal for pool owners who want a fully automated cleaning solution that can be controlled remotely. With a 4.3 star rating, it promises reliable performance and advanced features like waterline scrubbing and dual drive navigation.
Standout features include always connected Wi Fi for scheduling cleanings from anywhere, and the active waterline scrubber that keeps the pool edges spotless. The dual drive system allows precise movement around obstacles and tight corners, while the active scrubbing brush is gentle on surfaces but tough on debris. The top load filter basket makes debris removal easy without getting into the water.
Build quality is solid, reflecting Dolphin's 40 years of experience in robotic pool cleaners. The unit weighs 24.6 pounds and measures 20x20x20 inches, making it robust but manageable. The black color is standard for pool equipment. Overall, it feels durable and well engineered for long term use.
Potential drawbacks include the high price tag, which may not suit every budget. Additionally, the Wi Fi functionality requires a stable home network, and the cleaner might be overkill for smaller or above ground pools. However, for large in ground pools, the convenience and cleaning power are hard to beat.
Verdict: The Dolphin Nautilus CC Supreme Wi Fi is a top tier choice for pool owners who value automation and thorough cleaning. Its waterline scrubbing, precise navigation, and remote control make it a standout. While costly, it delivers on its promise of hassle free pool maintenance. Recommended for those with larger in ground pools who want the best in robotic cleaning.
Pros
- Programmable timer allows for fully automated weekly cleaning schedules.
- Efficiently cleans both floor and walls, including climbing to the waterline.
- Energy-efficient operation saves money compared to traditional pool cleaners.
- No need for additional hoses or booster pumps, simplifying setup.
- Large filter basket handles heavy debris and is easy to empty.
Cons
- No smartphone app control for remote scheduling or monitoring.
- Only one active brush may be less effective on heavily textured surfaces.
- Price point is higher than some suction or pressure side cleaners.
The Dolphin Cayman (2026 Model) is a robotic pool cleaner designed for in-ground and above-ground pools up to 33 feet. It is ideal for homeowners who want a low-maintenance, automated cleaning solution without the complexity of hoses or booster pumps. With programmable scheduling, this cleaner can run on its own and keep your pool pristine with minimal effort.
Standout features include the CleverClean Technology, which scans the pool and uses algorithms to optimize cleaning paths while avoiding obstacles. The HyperBrush provides active scrubbing to remove tough dirt, and the large top-load filter basket captures leaves and debris efficiently. In real-world use, the Cayman can complete a full cleaning cycle in about 2 hours, leaving the pool sparkling clean.
Design and build quality are solid, with a lightweight construction that makes it easy to handle. The unit has a blue finish and measures about 17 x 16 x 10 inches, weighing 24 pounds. The top-loading filter is convenient to access and clean, reducing downtime. The cleaner is also 8x more energy efficient than traditional suction or pressure cleaners, which is a notable long-term benefit.
One potential drawback is the lack of smartphone connectivity, so you cannot adjust settings remotely. Additionally, the single brush may not be as aggressive on heavily textured surfaces compared to dual-brush models. The price is on the higher side, but the combination of features and energy savings may justify the investment for many pool owners.
Overall, the Dolphin Cayman is a reliable and efficient robotic pool cleaner that excels in convenience and performance. It is best suited for pool owners who value automation, energy savings, and hassle-free maintenance. With its programmable timer and effective cleaning, it delivers a consistently clean pool with minimal intervention.
Color: Blue
Dimensions: 17.189 x 15.776 x 10.386 inches
Weight: 24.3 pounds
Product Group: Lawn & Patio
Binding: Lawn & Patio
Pros
- Effortless filter cleaning with top-load basket – no need to flip the robot over.
- Active scrubber brush lifts and removes stubborn dirt and leaves without human intervention.
- Smart navigation adapts to any pool shape, reducing missed spots.
- Simple operation: plug in, drop, and let it work – ideal for pool owners of all skill levels.
- Lightweight and compact storage (18x22x12 inches).
Cons
- Cannot clean walls or waterline, so you may need to manually clean those areas.
- No remote control or app for custom scheduling – relies on its own navigation logic.
- Filter basket may need frequent emptying if pool is heavily debris-laden.
The Dolphin Nautilus AG (2026 Model) is a robotic pool vacuum tailored specifically for above-ground pools up to 33 feet in length. It aims to eliminate the manual drudgery of pool maintenance with a combination of an active scrubber brush and smart navigation. This is a solid choice for pool owners who want a set-it-and-forget-it solution without breaking the bank.
Standout features include the active scrubber brush, which actively agitates dirt and debris from pool surfaces, and the top-load filter basket that makes emptying a breeze. In practice, the robot navigates intelligently, scanning the pool to determine the most efficient cleaning path. While it does not clean walls or the waterline, it does a thorough job on the floor and coves, completing a cycle in roughly 1.5 hours.
Design and build quality reflect Dolphin's 40-year legacy. The unit feels solid yet lightweight at just under 15 pounds. The plug-and-play system means no complicated installation: simply connect the power supply, lower the robot into the water, and turn it on. The top-load filter is a thoughtful ergonomic touch, allowing you to remove debris without bending or flipping the unit.
Potential drawbacks are worth considering. The lack of wall and waterline cleaning means you'll still need to manually brush those areas. Also, the robot does not offer scheduling via an app or remote – it runs a fixed cycle each time you plug it in. For pools with heavy leaf or debris loads, the filter basket may require frequent emptying during the cycle.
Overall, the Dolphin Nautilus AG delivers on its promise of effortless floor cleaning for above-ground pools. It earns a 4-star rating for its reliability, user-friendliness, and performance. If you don't mind occasional manual touch-ups on walls and are looking for a straightforward, effective robotic cleaner, this is a strong investment.
Buying Guide
Wall Climbing and Scrubbing Power
If your pool has algae, calcium deposits, or stubborn dirt along the waterline, wall climbing is non-negotiable. Models like the Dolphin Cayman and Nautilus CC Plus use active scrubbing brushes and HyperGrip tracks to climb walls efficiently. The Cayman’s HyperBrush spins twice as fast as standard brushes, dislodging tough contaminants without damaging surfaces.
For pools with heavy debris or frequent use, prioritize units with dual motors and continuous tracks. These features ensure the cleaner maintains traction even on slick surfaces, reducing missed spots. For a deeper look at top performers, see our best dolphin robotic pool cleaners for wall climbing.
Filtration System and Maintenance
A good filter basket makes the difference between clear water and cloudy pool days. Most Dolphin cleaners come with a top-load filter basket that is easy to remove and clean. For finer filtration, aftermarket options like the Ulticor and Fiitzn ultra-fine baskets trap smaller particles, reducing the need for frequent filter rinses.
If you have a pool that collects fine dust or pollen, consider a compatible upgrade. These baskets fit many Dolphin models, including the Cayman, Nautilus CC, and Escape. Rinse them every 4 to 6 weeks for best performance. For more on accessories, visit our accessories page.
Smart Features and Convenience
Modern robotic cleaners offer Wi-Fi connectivity, programmable schedules, and smart navigation. The Dolphin Nautilus CC Plus Wi-Fi and Nautilus CC Supreme let you schedule cleanings from your phone, while the Cayman (2026 Model) includes a weekly timer with three settings. SmartNav 2.0 scanning software maps your pool for efficient cleaning routes.
If you value automation, look for models with app control or programmable timers. These features save time and ensure your pool stays clean even when you are away. For a comparison of app-enabled models, read our best dolphin robotic pool cleaners with app control guide.
Pool Size and Compatibility
Not all Dolphin cleaners suit every pool size. The Nautilus CC Plus handles in-ground pools up to 40 feet, while the Nautilus CC Supreme works for pools up to 50 feet. For above-ground pools, the Nautilus AG is a dedicated option that cleans floors efficiently without wall climbing. Always verify your pool’s length and surface type before purchasing.
If you have a smaller pool or a tight budget, consider the Dolphin Escape or Nautilus CC, which cover pools up to 33 feet. For more budget-friendly picks, see our top Budget-Friendly dolphin robotic pool cleaners.
Final Thoughts
After evaluating the lineup, the DOLPHIN Cayman Robotic Inground Pool Cleaner stands out for its HyperBrush scrubbing and HyperGrip tracks, making it ideal for tough debris and wall climbing. For a more affordable yet powerful option, the Dolphin Automatic Robotic Pool Vacuum Cleaner (Nautilus CC Plus) offers excellent wall scrubbing and easy filter care at a lower price point. Both models deliver reliable, hands-free cleaning that will keep your pool sparkling all season.
Related Guides
Frequently Asked Questions
How often should I clean the filter on my Dolphin Cayman? Rinse the filter basket every 4 to 6 weeks for optimal performance. If your pool collects heavy debris, check it more frequently.
Can the Dolphin Cayman climb walls? Yes, the Cayman features HyperGrip rubber tracks and a HyperBrush that allow it to climb walls and scrub the waterline effectively.
Is the Dolphin Nautilus CC Plus Wi-Fi compatible? Yes, the Nautilus CC Plus Wi-Fi model lets you schedule cleanings from your smartphone. The standard Nautilus CC does not have Wi-Fi.
What is the best Dolphin cleaner for an above-ground pool in 2026? The Dolphin Nautilus AG is specifically designed for above-ground pools up to 33 feet. It cleans floors efficiently with an active scrubbing brush and smart navigation. For more beginner-friendly options, check our best Dolphin robotic pool cleaner for beginners guide.
