Part of the Dolphin Max-Series™ lineup · compare all 3 models
Dolphin Cayman Robotic Pool Cleaner — Certified Open Box
- Certified Open Box: like-new condition, Maytronics-software inspected
- Full 2-year warranty coverage starting on your delivery date
- Climbs walls & scrubs floors with 2×-speed HyperBrush™ + HyperGrip™ tracks
- Oversized top-load MaxBin™ basket + built-in Weekly Smart Timer
- Lightweight ~14-lb handling & 30-day return eligibility
or as low as $88.25/mo with
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
*Rates from 0% APR. Subject to eligibility check. See payment terms.
Like-New Dolphin Cayman Wall-Climbing Value—For Less
Software-Verified Like New
Bench-checked with Maytronics diagnostics and shipped complete with MaxBin™ basket and Weekly Timer power supply.
Full 2-Year Warranty
Protected for two full years starting on delivery day—identical to buying factory-sealed.
Floor & Wall Scrubbing
HyperGrip™ continuous tracks climb walls across vinyl, fiberglass, and concrete pools.
Weekly Smart Timer
Automate 2-hour cleanings every day with one button.
Top-Load MaxBin™
One-hand top access makes hosing out leaves and dirt effortless.
Easy ~14-Lb Lift
Drains fast at the pool edge so anyone can lift and store it comfortably.
Verified Complete & Covered for 2 Full Years
Our Certified Open Box Dolphin Cayman units pass official Maytronics diagnostic testing and arrive complete with the top-load MaxBin™ basket, 40-ft cord, and Programmable Weekly Timer power supply—backed by a full 2-year warranty starting on delivery and 30-day returns. Compare with Certified Refurbished Cayman or Factory-New Cayman.
Dolphin Cayman (Open Box) Specs
Dolphin Cayman (Open Box) FAQ
Does the Open Box Cayman still carry the 2-year warranty?
Yes—your 2-year warranty starts on the date of delivery.
Is the Weekly Timer power supply included?
Yes, every Open Box Cayman ships with the original Programmable Weekly Timer power supply and MaxBin™ basket.
Can I add NanoFilters to an Open Box Cayman?
Yes—it accepts genuine NanoFilters for Dolphin Cayman.
We’re Here Long After Delivery Day
2-Year Warranty (Starts on Delivery)
Diagnostic-tested with Maytronics software and covered by a full 2-year warranty starting on delivery day. See warranty details.
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.
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)
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.
How the Dolphin Cayman (Open Box) Stacks Up
See what spending more—or less—changes in pool size, filtration, warranty, and everyday convenience.
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$899
$768
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|---|---|---|---|---|---|
| Best for | Best value wall-climber | Above-ground & small pools | Best value wall-climber | Best all-around inground pick | Premium clean without the UV price |
| Cleaning coverage | Floor, walls & waterline | Floor only | Floor, walls & waterline | Floor, walls & waterline | Floor, walls & waterline |
| Filtration | MaxBin™ top-load basket (NanoFilter™-ready) | 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.