Dolphin Nautilus CC Plus Robotic Pool Cleaner Review
A research-based review of the Dolphin Nautilus CC Plus, a corded robot Maytronics classifies for in-ground pools, with specs, trade-offs, and rivals.
Updated October 30, 2026
Maytronics sells the Dolphin Nautilus CC Plus robotic pool cleaner as a corded model for in-ground pools. Its US product page lists floor and wall coverage, a tangle-free swivel cord, and a top-load filter basket, and because the robot is corded, there is no battery to charge. It suits a typical in-ground backyard pool whose owner wants the floor and walls cleaned without setting up an app. It is a weaker fit if you need the waterline scrubbed, own an above ground pool, or want a long warranty.
This review is research-based. We did not run the robot ourselves. It draws on the Maytronics US product page, the Amazon listing for this model, and the owner rating data behind its BackyardPoolLab Score. Where the maker’s page and the listing disagree, we say so and tell you which figure to plan around.
This guide is general product information, not repair or electrical safety advice. Follow the manufacturer’s manual for installation and use, have pool electrical work done by a licensed electrician, keep children supervised around water, and stop using any product that sparks, overheats, or has a damaged cord.
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Dolphin Nautilus CC Plus Robotic Pool Cleaner
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At a Glance
Figures come from the Maytronics US product page unless the row says otherwise. “Not confirmed” means the maker’s page gives no figure or gives two figures that do not match.
| Specification | Dolphin Nautilus CC Plus |
|---|---|
| Pool classification | In ground |
| Cleaning coverage | Floor and walls |
| Maximum pool length | Not confirmed: 40 ft in the comparison table, “Up to 50 ft” in the tech specs |
| Filtration | Fine filter kit in a top-load basket; ultra-fine filter kit listed as the additional filter in the box |
| Cord | Tangle-free swivel cord |
| Robot weight | 20.9 lb (the Amazon listing gives 9.45 kg, about the same) |
| Mobile app | No |
| Cycle time | Not confirmed (the page mentions both 2 hours and 3 hours) |
| Electrical rating | Not stated by the maker; the Amazon listing gives the power source as “AC/DC” |
| Warranty | 1 year |
What We Like
- Floor and wall coverage without a battery. Maytronics lists both surfaces for this model. Being corded, it has no battery pack whose capacity fades over the years.
- Two filter grades in the box. The maker’s comparison table lists a fine filter kit as standard and an ultra-fine filter kit as the additional filter, so you can match the filter to the debris you see.
- Filter access from the top. Maytronics describes a top-loading opening for filter cleaning, which it recommends after every cleaning cycle, so the basket lifts out without turning the robot over.
- A swivel cord. The maker’s spec sheet lists the cord type as “Tangle-Free Swivel Cord.”
- Nothing to pair. The listing calls the setup plug-and-play (“Just plug in, drop into the pool, and power on”), and the maker’s comparison table shows no mobile app for this model.
What Could Be Better
- No waterline scrubbing listed. Coverage on the maker’s page stops at “Floor and Walls,” so nothing there addresses grime at the tile band.
- Pool length is unsettled. The comparison table and the tech specs on the same Maytronics page disagree (40 ft versus up to 50 ft), and the listing title sides with 40 ft.
- Cycle time is unclear. One line on the page promises a 2-hour clean, another a 3-hour full cycle, and the comparison table leaves cycle duration blank.
- No published electrical rating. The maker’s US page leaves it out, and the listing says only “AC/DC.”
- A one-year warranty, per the maker.
Pool Fit: Size, Shape, and Surface
Start with pool type. Maytronics classifies the Nautilus CC Plus as an in-ground robot, and the Amazon title says the same. If you own a soft-sided or steel-wall above ground pool, this is not the model the maker points you to, and you should look at a robot the maker rates for above ground use.
Next, length. Because the maker’s page carries both 40 ft and 50 ft, and we could not tell which is current, plan around the smaller number. A common 16 x 32 ft rectangle sits well inside either one. A 20 x 44 ft pool is past 40 ft, and that owner should ask Maytronics which figure applies before buying, or compare models with a larger listed pool size.
On surfaces, Maytronics says the robot climbs in-ground pool floors and walls “for thorough cleaning on any pool surface,” and the Amazon listing uses similar wording. If you have a pebble finish, fresh plaster, or an older vinyl liner, read the manual for any surface limits before the first run.
Filtration and Weekly Care
The Nautilus CC Plus collects debris in its own basket rather than sending it to your pool’s main filter. Maytronics recommends cleaning that filter after every cleaning cycle.
Two filter grades come in the box, according to the maker’s comparison table: the fine filter kit and an ultra-fine kit. As its name suggests, the ultra-fine kit is meant for smaller particles such as dust and pollen; check the manual for when Maytronics recommends each one. The Amazon listing’s product care field reads: “Regularly clean the top-load filter and handle with care around water; store in a dry place when not in use.” For a pool under trees, that can mean rinsing the basket after every cycle through the fall.
The robot weighs 20.9 lb per Maytronics. You lift it out of the pool to clean the filter, so owners who cannot comfortably lift about 21 lb from the water’s edge should factor that in.
Corded Power and Electrical Setup
What the sources say is short. Maytronics lists a tangle-free swivel cord for this model. The Amazon listing gives the power source as “AC/DC” and the installation type as plug-and-play. Neither one states the electrical rating, and Maytronics’ manual site did not return a manual for this model when we looked.
That leaves one practical step before buying: get the electrical rating and setup requirements from the manual or from Maytronics. Follow the manufacturer’s manual for installation and use, and have pool electrical work done by a licensed electrician.
The upside of a cord is simple: no charging between runs and no battery to replace. The downside is that you handle a cord as part of every cleaning, which some owners would rather avoid by choosing a cordless robot.
Warranty and Where It Is Sold
Maytronics lists a one-year warranty for this model on its product page. When we checked, the Amazon listing was sold by The Pool Spot, a third-party seller, not by Amazon.com. We could not find published Maytronics terms on its US site that say whether a purchase from a given online seller qualifies for warranty service. Before you order, ask Maytronics or the seller to confirm that this purchase is covered, and keep your receipt with the serial number.
How It Compares
Each of these cordless robots also appears in our robotic pool cleaner roundup. Their details come from their Amazon listings, and each comparison focuses on the one difference most likely to decide it.
Nautilus CC Plus vs Beatbot Sora 70
The deciding question is how much of the pool you need covered. The Dolphin’s maker lists two surfaces. The Sora 70 listing adds three more: the waterline, the water surface, and shallow platforms in at least 8 inches of water. Per the listing, one charge covers as much as 3,229 sq ft, with floor cleaning lasting as long as 5 hours. If floating leaves or a tanning ledge are part of your weekly cleanup, the Sora 70 is built for that job. If only the floor and walls matter, the Dolphin does that with no charging.
Nautilus CC Plus vs Aiper Scuba S1
Here the differences are the waterline, scheduling, and warranty. The Scuba S1 listing covers the waterline and shallow areas deeper than 12 inches, describes a weekly cleaning plan, and states a two-year warranty, against one year for the Dolphin per Maytronics. The trade is a battery: the listing rates the S1 for up to 180 minutes in its standard modes, with a longer Eco mode set through the app. Owners who want the tile line handled will lean toward the S1. Owners who want no charging and no app will lean toward the Dolphin.
Nautilus CC Plus vs Aiper Scuba X1
If charging is the reason you are looking at a corded robot, the Scuba X1 takes a different route to the same goal. A wireless charging dock ships with it, according to its listing (around 4 hours to a full charge), and charging means setting the robot on the dock. The listing also states a two-year warranty. What it leaves out is weight, runtime, and coverage, so you cannot size it against the Dolphin’s 40 ft figure.
Who Should Look Elsewhere
- Owners of above ground pools, since Maytronics classifies this model for in-ground pools.
- Anyone whose main complaint is a dirty tile line, because the maker does not list waterline cleaning for this model.
- Owners of pools longer than 40 ft who cannot get Maytronics to confirm which pool-size figure applies.
- Buyers who cannot confirm the electrical rating and setup requirements with Maytronics before buying.
- Buyers who want app scheduling or a warranty longer than one year.
Why You Should Trust Us
Nothing in this review comes from running the robot ourselves. It is built from the maker’s product page that we opened and checked, the Amazon listing for this exact model, and owner rating data. The BackyardPoolLab Score shown on the product card starts from a base derived from the owner rating, plus an editorial adjustment of up to half a point either way; the full method is on our How We Review page. Commissions never change what we write or how a product scores.
Final Verdict
The Dolphin Nautilus CC Plus is a straightforward corded robot for in-ground pools: floor and wall cleaning, a top-load basket with two filter grades, a swivel cord, and no app or battery to manage. Its weak points are the missing waterline coverage, the conflicting pool-size and cycle figures on the maker’s page, an unpublished electrical rating, and a one-year warranty. If your in-ground pool is 40 ft long or less and the tile line is not your main problem, it fits the job. Owners who want waterline cleaning or no cord at all should compare the cordless robots above and the rest of our robotic pool cleaners coverage.
Frequently Asked Questions
Does the Dolphin Nautilus CC Plus clean the waterline?
Maytronics lists the cleaning coverage for this model as “Floor and Walls,” with no waterline entry. If you need the tile line scrubbed, look at a model that lists waterline cleaning.
How big a pool can the Nautilus CC Plus handle?
Maytronics gives two numbers on the same page, 40 ft and up to 50 ft, and the listing title uses 40 ft. Size your choice to 40 ft unless Maytronics confirms the larger figure for your pool.
Can I use the Nautilus CC Plus in an above ground pool?
Maytronics classifies it for in-ground pools. For an above ground pool, choose a robot the maker rates for that pool type.
Does the Nautilus CC Plus have an app?
No. The maker’s comparison table lists “Mobile Application: No” for this model, and the Amazon listing describes a plug-in, drop-in, power-on routine.
How long is a cleaning cycle?
The maker’s page mentions both a 2-hour clean and a 3-hour full cycle, and the Amazon listing mentions 2 hours. Check the manual for the cycle your unit runs.
What electrical rating does the Nautilus CC Plus need?
Neither the Maytronics US page nor the Amazon listing states it; the listing only gives the power source as “AC/DC.” Get the rating from the manual or Maytronics, follow the manufacturer’s manual for installation and use, and have pool electrical work done by a licensed electrician.
About the author
Brett Beck is the editor-in-chief of BackyardPoolLab. He leads our coverage of robotic and manual pool cleaners and oversees our editorial standards. Brett builds each guide from manufacturer manuals, product specifications and public safety guidance, and checks that every claim traces back to a source.