Your Dolphin Explorer E20 is a workhorse, tirelessly scrubbing your pool floor and walls. But even the best robotic cleaner needs fresh parts to keep performing at its peak. A clogged or worn filter means less suction, dirtier water, and more work for you. That’s why choosing the right replacement filter is one of the most important maintenance decisions you’ll make.
Product Comparison: Top Dolphin Explorer E20 Filters and Parts
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
- Wi-Fi control for remote scheduling and convenience.
- Effective waterline scrubbing eliminates a common chore.
- Durable build backed by decades of brand reputation.
- Precise navigation around obstacles and corners.
- Gentle yet powerful cleaning on all pool surfaces.
Cons
- Premium price point may not fit all budgets.
- Requires a stable Wi-Fi connection for full functionality.
- Heavy at over 40 pounds, which may make handling slightly cumbersome.
The Dolphin Explorer E40 is a high-end robotic pool vacuum designed for inground pools up to 50 feet long. It is ideal for pool owners who want to minimize manual cleaning and enjoy a consistently pristine pool. With Wi-Fi connectivity, wall climbing, and waterline scrubbing, this robot takes over the most tedious tasks.
Standout features include always-connected Wi-Fi for scheduling from anywhere, and active scrubbing that eliminates the need for manual brushing. The waterline scrubber brush is particularly effective, ensuring the waterline stays spotless without effort. Dual drive steering allows the robot to navigate tight corners and obstacles, providing thorough coverage.
Build quality is robust, consistent with Dolphin's 40-year legacy. The unit weighs over 40 pounds, which adds stability during cleaning but may be heavy to lift out of the pool. The design is straightforward and functional, with a black finish that blends into pool environments.
Potential drawbacks include the high price, which may be a barrier for some. Also, the Wi-Fi features depend on a reliable home network, and the weight can be a minor inconvenience during maintenance. However, these are trade-offs for premium automation.
Overall, the Dolphin Explorer E40 is a top-tier choice for pool owners seeking effortless cleaning. Its combination of connectivity, scrubbing power, and navigation precision makes it a worthwhile investment for those with inground pools up to 50 feet. Highly recommended for its performance and durability.
Pros
- Wi-Fi connectivity allows remote scheduling and control from anywhere.
- Effective waterline and wall scrubbing for a thorough clean.
- Easy-to-clean top-load filter basket simplifies maintenance.
- Trusted brand with a long history of reliable robotic pool cleaners.
- Suitable for larger pools up to 50 feet in length.
Cons
- High initial investment compared to manual or less advanced pool cleaners.
- No user reviews available yet to gauge real-world performance and reliability.
- May require a compatible Wi-Fi network and initial setup for full functionality.
The Dolphin Explorer E50 is a Wi-Fi enabled robotic pool vacuum cleaner designed for pool owners who want a hands-off cleaning experience. It is best suited for in-ground pools up to 50 feet in length, offering automated cleaning that saves time and effort.
Standout features include always connected Wi-Fi for scheduling cleanings from anywhere, waterline scrubbing that keeps the waterline spotless, and an active scrubbing brush that eliminates manual scrubbing. These features work together to deliver a thorough, hassle-free clean.
Built on over 40 years of Dolphin expertise, the Explorer E50 offers a durable design with a user-friendly top-load filter basket. The basket makes debris removal quick and easy, ensuring crystal-clear water without complicated maintenance.
Potential drawbacks include a premium price point and the lack of user reviews since this is a new model. Additionally, the Wi-Fi feature requires a stable home network for full remote functionality.
Overall, the Dolphin Explorer E50 is a powerful and convenient choice for pool owners who value automation and are willing to invest in a top-tier robotic cleaner. Its advanced scrubbing and connectivity features make it a standout in the market.
Color: Gray
Size: Explorer E50
Dimensions: 19 x 19 x 23.5 inches
Product Group: Lawn & Patio
Binding: Lawn & Patio
Compatible Pool Length: Up to 50 feet
Key Buying Criteria for Dolphin Explorer E20 Filters
When you’re looking for the best filter for your Dolphin Explorer E20, it’s not just about grabbing any compatible part. You need to consider what matters most for your pool’s cleanliness and your convenience.
Filtration Type: Ultra-Fine vs. Fine
The primary difference between replacement filters is the filtration level. Ultra-fine filters capture microscopic particles like pollen, algae, and fine sand, leaving your pool water crystal clear. Fine filters are great for everyday debris like leaves and twigs but may let smaller particles pass through. If you have a plaster or pebble pool, ultra-fine is often the way to go.
Compatibility and Fit
Not all filters are created equal, and compatibility matters. The Dolphin Explorer E20 uses specific filter baskets and panels. Always check that the replacement part is explicitly listed as compatible with the Explorer E20. Some aftermarket options, like the Ulticor Ultra Fine Filter Basket, are designed to fit a wide range of Dolphin models, but you must confirm the fit for your specific unit.
Build Quality and Durability
A filter that falls apart after a few weeks is a waste of money. Look for filters made from high-quality, durable materials that can withstand repeated cleaning and the rigors of pool chemicals. The filter frame should be rigid, and the mesh or cloth should be securely attached. Genuine Dolphin parts are often the most reliable, but many aftermarket brands offer comparable quality at a more accessible price.
Ease of Cleaning and Maintenance
You’ll be rinsing your filter regularly, so ease of cleaning is a big deal. Some filters, like the mesh panels, can be hosed down quickly. Others may require more thorough cleaning or periodic replacement. Consider how much time you want to spend maintaining the filter itself.
Frequently Asked Questions
How often should I replace the filter in my Dolphin Explorer E20?
It depends on how often you run your cleaner and the debris load in your pool. Generally, a filter should be replaced every 6-12 months. If you notice reduced suction or the filter is difficult to clean thoroughly, it’s time for a new one.
Can I use an aftermarket filter in my Dolphin Explorer E20?
Yes, many aftermarket filters are designed to be compatible with the Dolphin Explorer E20. Just make sure to verify compatibility before purchasing. Aftermarket options often offer comparable performance at a lower cost.
What’s the difference between the fine filter basket and the ultra-fine filter panels?
The fine filter basket is a single basket that fits inside the robot’s dirt compartment. The ultra-fine filter panels are flat panels that replace the standard mesh panels inside the basket. Ultra-fine panels capture smaller particles, but they may require more frequent cleaning.
Related Guides
- Best Pool Robot Replacement Brush for Algae in 2026
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- 5 Top Replacement Tracks for Pool Robot in 2026
How do I clean the filter on my Dolphin Explorer E20?
Most filters can be rinsed with a garden hose. Use a gentle spray to dislodge debris. For stubborn dirt, you can soak the filter in a mild cleaning solution, but always rinse thoroughly before reinstalling.
For more insights into Dolphin pool cleaners, check out our guides on the best dolphin EON 120d and the Best Dolphin EON 100.
