The Best Dolphin Robotic Pool Cleaners with Ultra Fine Filters

The Best Dolphin Robotic Pool Cleaners with Ultra Fine Filters

We carry every Dolphin robot by Maytronics. Here are the models built to handle ultra fine filters best — with the filtration, brushes, and navigation that matter most with Ultra Fine Filters.

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Dolphin builds one of the widest robotic pool cleaner lineups on the market, so choosing the right one with Ultra Fine Filters comes down to matching the robot's filter, brushes, and navigation to the job.

Ultra-fine filtration captures the smallest particles a pool robot can — the difference between water that looks clean and water that looks brand new. It's the top priority for anyone fighting fine dirt, silt, or a persistent haze.

What to look for in a robotic pool cleaner with Ultra Fine Filters

For the finest results, choose a robot with ultra-fine filter media or NanoFilters, or add Dolphin's UltraFilter upgrade kit to a compatible model. Ultra-fine media captures microscopic debris and keeps water polished. Pair it with a robot that covers the whole floor evenly so nothing is missed.

  • Ultra-fine / Nano media
  • UltraFilter upgrade compatibility
  • Even, complete floor coverage
  • Easy-rinse, reusable filters
Our Recommendations

Best Dolphin Robotic Pool Cleaners with Ultra Fine Filters

These are the Dolphin models we recommend most with Ultra Fine Filters, ranked for this job. Every one ships free with a 30-day trial.

#1 Pick Dolphin Quantum Robotic Pool Cleaner

Dolphin Quantum

$1799$1499Save $300

NanoFilter MaxBin delivers the finest standard filtration in the lineup.

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#2 Pick Dolphin Sigma Robotic Pool Cleaner

Dolphin Sigma

$2999$2349Save $650

Dual fine cartridges plus NanoFilter capability for the deepest clean.

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#3 Pick Dolphin Premier Robotic Pool Cleaner

Dolphin Premier

$2499$1949Save $550

Multi-media filtration lets you fit the finest cartridges for polished water.

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Every Model

Compare all Dolphin pool robots

Not sure yet? Compare the full lineup below. Every robot ships free and is backed by a manufacturer warranty.

Dolphin Quantum Robotic Pool Cleaner

Dolphin Quantum

$1799$1499Save $300

With XXL MaxBin with NanoFilters, Waterline Cleaning, Weekly Timer, and more, the Dolphin Quantum robotic pool cleaner is one of the best pool robots.

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Dolphin Cayman Robotic Pool Cleaner

Dolphin Cayman

$1299$1049Save $250

With the Gen-2 MaxBin, HyperBrush, Weekly Timer, and Wall Climbing, experience the new generation of robotic pool cleaners with the Dolphin Cayman.

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Dolphin Escape Robotic Pool Cleaner

Dolphin Escape

$999$659Save $340

With powerful motors, MaxBin filtration, and a HyperBrush, the Dolphin Escape robotic pool cleaner paves the way as the new generation of pool cleaners.

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Dolphin Sigma Robotic Pool Cleaner

Dolphin Sigma

$2999$2349Save $650

High-tech and high-power, the Dolphin Sigma robotic pool cleaner sits at the top of the ProLine with Triple Commercial Motors, NanoFilters, Gyroscope, & More.

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Dolphin Premier Robotic Pool Cleaner

Dolphin Premier

$2499$1949Save $550

The only Dolphin with Multi-Media. The Dolphin Premier stands out with ProLine Commercial Motors, Powerful Scrubbing Brushes, NanoFilters, and more.

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Dolphin Explorer E70 Robotic Pool Cleaner

Dolphin Explorer E70

$2299$2099Save $200

The top of the line Dolphin Explorer E70 stands out with high-tech sensors, dual-layer filter basket, and includes a caddy. Backed by a full 3-year warranty.

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Dolphin Explorer E50 Robotic Pool Cleaner

Dolphin Explorer E50

$1799$1629Save $170

With Wi-Fi, waterline cleaning, and a dual-layer filter basket, shop and compare the Dolphin Explorer E50 to all the top Dolphin robotic pool cleaners.

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Dolphin Explorer E30 Robotic Pool Cleaner

Dolphin Explorer E30

$1699$1099Save $600

Now with Wi-Fi, discover the 2026 Dolphin Explorer E30. With myDolphin plus app, waterline cleaning, and more, backed by a full warranty.

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Dolphin Explorer E20 Robotic Pool Cleaner

Dolphin Explorer E20

$1299$669Save $630

With wall climbing, top-loading filter, and constant power, shop the Dolphin Explorer E20 robotic pool cleaner and enjoy free shipping and the lowest prices.

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Dolphin E10 Robotic Pool Cleaner

Dolphin E10

$699$499Save $200

With a top-loading filter basket, CleverClean filter, and constant power, the Dolphin E10 robotic pool cleaner is the perfect robot for above-ground pools.

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Dolphin Nautilus Pool Up Robotic Pool Cleaner

Dolphin Nautilus Pool Up

$799$599Save $200

The entry-level Dolphin Nautilus pool robot. Shop the 2026 Dolphin Nautilus Pool Up Robotic Pool Cleaner with a 1-year warranty, wall climbing, dual brushes, and a high-capacity filter bag.

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Complete Your Setup

Pool care add-ons & accessories

Round out your robot with these popular add-ons. The solar-powered Skimmi clears floating debris off the surface your floor robot can’t reach, and the ICO smart monitor keeps your water chemistry balanced year-round.

Dolphin Skimmi

Dolphin Skimmi

$599$549Save $50

Experience hassle-free pool maintenance with Dolphin Skimmi, the innovative solar-powered pool skimmer. Features smart navigation, debris collection, and automatic charging for continuous operation.

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ICO

ICO

$599$449Save $150

ICO Pool Water Monitor - The ultimate smart pool water quality system. Real-time monitoring of chlorine, pH, temperature, and more. Get instant alerts and maintain perfect pool water balance with AI-powered technology.

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Why Buy From Us

The smartest place to buy your Dolphin

Lowest price

Lowest Price Guarantee

Buy direct from our 10,000+ unit warehouse at unbeatable prices.

Manufacturer warranty

Manufacturer Warranty

Every robot is backed by a full 1–3 year manufacturer warranty.

Fast free shipping

Fast Free Shipping

Ships free from our warehouse, usually within one business day.

1-on-1 support

1-on-1 Support

Get help from in-house pool experts before and after you buy.

Frequently asked questions

Which robotic cleaner has the finest filters?

Dolphin models with NanoFilters, like the Quantum and Sigma, offer the finest standard filtration (down to ~2 microns). The Premier's multi-media system also accepts ultra-fine cartridges.

What is the UltraFilter upgrade?

It's a fine-filter kit that boosts a compatible Dolphin's filtration for capturing smaller particles. See our UltraFilter page for compatibility.

Do ultra-fine filters slow down cleaning?

No — they capture more without slowing the robot. They fill sooner in dirty water but rinse clean quickly.

Still deciding?

Compare every Dolphin side by side, or talk to a pool-robot specialist to find your perfect match.