Dolphin Cayman
Best for: Best value wall-climber
CoverageFloor, walls & waterline
Pool sizeUp to 50 ft
Warranty2 years
$1079
See this cleaner
Part of the Dolphin Classics lineup · compare all 6 models
Dolphin
Dolphin Mercury Robotic Pool Cleaner
- PowerStream™ lateral jets scrub floor, walls & tile waterline (up to 50 ft)
- 1-Hour Quick Clean floor mode + 2-Hour full-pool standard cycle
- Wi-Fi & Bluetooth connected via the myDolphin™ Plus smartphone app
- Extra-large top-load filter basket with fine & ultra-fine filtration
- Lightweight 16.5-lb quick-drain chassis & 2-year Maytronics warranty
$1049
or as low as $87.42/mo with
In Stock & Ready to Ship
Fast, Free Shipping
Available for Pre-Order
Make storage easier:
Dolphin Universal Caddy
$145
Why pool owners add the Universal Caddy
- Effortless Roll-to-Pool Transport – Wheel your Dolphin smoothly from patio or garage to poolside without heavy lifting
- Protects Scrubbing Brushes – Cradles the cleaner off the ground so active brushes never develop flat spots in storage
- Integrated Power Supply Mount – Locks your power supply upright off wet decks and neatly coils up to 60 ft of swivel cable
- Genuine Maytronics Fit – Engineered specifically by Maytronics to cradle residential Dolphin robotic pool cleaners
Dolphin Premium Caddy Cover
$99
Why add the Premium Caddy Cover
- All-Season UV & Rain Shield – Heavy-duty woven polyester protects plastics, tracks, and cables from harsh sun and storms
- Shields Power Supply Electronics – Keeps your caddy-mounted power supply dry, shaded, and free of dust and pollen
- Ventilated, Wind-Secure Fit – Built-in side vents prevent trapped humidity while bottom velcro straps hold firm in high winds
- Roll Without Removing – Integrated top handle slot lets you wheel your covered caddy straight into storage
✓ Fast, Free Shipping on qualifying orders
✓ 30-Day Return Window
✓ 2-Year Maytronics Warranty
*Rates from 0% APR. Subject to eligibility check. See payment terms.
Other Cleaners We’d Consider
Three strong alternatives at a similar price, chosen for pools like yours.
Dolphin Escape
Best for: Above-ground & small pools
CoverageFloor only
Pool sizeUp to 33 ft (above-ground)
Warranty2 years
$768
See this cleaner
Dolphin Quantum
Best for: Best all-around inground pick
CoverageFloor, walls & waterline
Pool sizeUp to 50 ft
Warranty2 years
$1649
See this cleaner
Connected 50-Ft Waterline Cleaner
1-Hour Quick-Clean Speed & Wi-Fi Scheduling at $1,049
myDolphin™ Plus Wi-Fi App
Schedule weekly cleanings, trigger cycles remotely, and switch cleaning modes from your phone.
1-Hour Quick Clean Option
Clear floor leaves and sand in just 60 minutes before afternoon swimmers jump in.
PowerStream™ Waterline Clean
Multi-directional water jets lock onto vertical walls and scrub laterally along the tile line.
Top-Load Dual Filtration
Roomy top-access basket includes media for both rough spring leaves and fine summer dust.
16.5-Lb Rapid Water Drain
Lightweight S-Series frame dumps water fast so lifting onto the coping is effortless.
2-Year Maytronics Warranty
Protected by Maytronics' 2-year manufacturer warranty.
Connected Waterline Cleaning at a Standout Price
Built on Maytronics' 50-ft PowerStream™ inground platform (note: older comparison tables sometimes grouped it with 33-ft models, so verify your pool size—the Mercury's 60-ft cable and dual active brushes are rated for full-size inground pools up to 50 feet), the Dolphin Mercury gives you both a 1-hour Quick Clean floor cycle and a 2-hour full floor/wall/waterline cycle controlled from the myDolphin™ Plus Wi-Fi app.
At a Glance
Dolphin Mercury Specs
Recommended Pool Size
Inground pools up to 50 ft
Cleaning Coverage
Floor, walls & tile waterline (PowerStream™)
Cycle Modes
1-Hour Quick Clean (Floor) & 2-Hour Full Clean
App & Scheduling
myDolphin™ Plus Wi-Fi App + Weekly Scheduler
Filtration
Top-load basket (fine + ultra-fine media)
Weight & Cable
16.5 lbs dry · 60-ft cable
Manufacturer Warranty
2-Year Maytronics Warranty
Common Questions
Dolphin Mercury FAQ
What size pool is the Dolphin Mercury built for?
The Dolphin Mercury is engineered for residential inground pools up to 50 feet long with a 60-foot cable.
Does the Dolphin Mercury have Wi-Fi?
Yes—it connects to the myDolphin™ Plus app (and uses Maytronics' 120W Wi-Fi power supply 99956085-ASSYV4) for remote scheduling and mode selection.
How does it compare to the Dolphin Quantum?
The Mercury is lighter (16.5 lbs) and costs $600 less; stepping up to the Dolphin Quantum adds the larger extra-large SnapLoc™ XXL MaxBin™ with NanoFilters™ and a 360° anti-tangle swivel cord.
Order With Confidence
We’re Here Long After Delivery Day
2-Year Maytronics Warranty
Manufacturer-backed protection and help from authorized US service centers.
30-Day Returns
If it isn’t right for your pool, start a return within 30 days.
Fast, Free Shipping
Your cleaner ships fast and free on qualifying orders, ready for its first run.
Clean Water, Too
Let the robot clean the pool. Let ICO watch the water.
ICO tests your water every hour and tells you exactly what to add—before cloudy water or algae ruins the weekend.
- Measures pH, ORP, and water temperature every hour
- Exact chemical amounts in the free iOS & Android app
- Warns you before heat or rain knocks the water out of balance
- Versions for chlorine/bromine and salt water pools (salt also tracks TDS)
From $449
$699
Save $250
Learn more about ICO →
ICO - The Smart Pool Water Monitor
Hourly water readings and exact dosing help—without another subscription.
Which type of pool do you have?
Complete Your Setup
Make poolside transport effortless and shield your cleaner and power supply between cycles.
Side-by-Side Comparison
How the Dolphin Mercury Stacks Up
See what spending more—or less—changes in pool size, filtration, warranty, and everyday convenience.
| Model |
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$1049
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|
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$899
$768
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Similar-price option
$1299
$1079
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$1649
|
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$2749
$1749
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|---|---|---|---|---|---|
| Best for | Compact, easy cleaning | Above-ground & small pools | Best value wall-climber | Best all-around inground pick | Premium clean without the UV price |
| Cleaning coverage | Floor + walls | Floor only | Floor, walls & waterline | Floor, walls & waterline | Floor, walls & waterline |
| Filtration | Top-load cartridge basket | Extra-large top-load basket | MaxBin™ top-load basket (NanoFilter™-ready) | XXL MaxBin™ top-load + NanoFilters™ | UltraFilter™ (1μm / 180μm) |
| Warranty | 2 years | 2 years | 2 years | 2 years | 3 years |
| Climbs walls | — | ||||
| Scrubs waterline | — | — | |||
| Ultra-fine filtration | — | — | — | ||
| Wi-Fi + app control | — | — | — | ||
| UV water clarifier | — | — | — | — | — |
Specs are based on manufacturer data; prices can change. Build your own comparison →
*Rates from 0% APR or 10–36% APR. Payment options through Shop Pay Installments are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. State notices to consumers: affirm.com/licenses.