Free 1-2 Day Shipping. Low Price Guarantee. Easy Returns/Exchanges.

Choose from top models from the top brands.

Free 1-2 Day Shipping. Low Price Guarantee. Easy Returns/Exchanges.

Choose from top models from the top brands.

Free 1-2 Day Shipping. Low Price Guarantee. Easy Returns/Exchanges.

Choose from top models from the top brands.

  • Dolphin W20
    Authorized Maytronics Dealer
  • Dolphin W20 for Fountains, Ponds, and Shallow Pools
  • Dolphin W20 Included Dolphin Universal Caddy
  • Dolphin W20 Remote
  • Dolphin W20 Filtration
  • Dolphin W20 Quickwater
  • Dolphin W20 Brushes
  • Dolphin W20 Poolside
  • Dolphin W20 Underwater 2
  • Dolphin W20 3
  • Dolphin W20 4
  • Dolphin W20 5
  • Dolphin W20 Robotic Pool Cleaner

Dolphin W20

Shipping Truck


Risk-Free 30 Day Trial


3 Year Warranty


Price Match Guarantee

  • Remote Control - Operate your Dolphin using the convenient separate remote control
  • CleverClean - Smart scanning and advanced navigation for complete pool coverage
  • Energy Saver - Reduces water, chemical, and energy usage with every pool cleaning

Condition: New

With the ability to cleran in pools as shallow as 8inches, the W20 is designed for wading pools, fountains, and reflection pools. This allows the Dolphin W20 to provide a deep clean for shallow pools.

Accessories You May Need...

Add a Dolphin Caddy for easy storage and transport.


Add a Premium Dolphin Cover to protect your robot


Save Even More...

Save $100 with purchase of any robot, caddy, and premium Dolphin cover.
Use Code: BUNDLE100
*Cannot be combined with any other offers

Shoppers ultimately bought... Compare vs.

Dolphin Sigma

Sigma adds waterline cleaning, NanoFilters™, triple motors, gyroscope, 3 year warranty + 30 Day Free Trial.

Dolphin Premier

Premier adds waterline cleaning, commercial grade motors, MultiMedia™, NanoFilters™, 3 year warranty + 30 Day Free Trial.

W20 Product Video

Try Risk-Free for 30 Days

Buy with Confidence

Try any robot in your pool risk-free for 30 days. We believe a pool robot is an investment, and we know you'll love it. Which is why we have a 30 Day Free Trial. If you don't love it, simply return the robot. Unlike the other guys, we never charge a restocking fee or any other fees - meaning no restocking fee ever.

Here at Poolbots, we carry only the top models for the top brands. All of our pool robots are backed by a full manufacturer's warranty - not prorated or limited to cycles like other pool robots.

W20 Accessories

Dolphin Universal Caddy

Easily transport your Dolphin W20 with the Dolphin Universal Caddy. Fits any Dolphin Robotic Pool Cleaner.

Dolphin W20 Specifications

Waterline Cleaning Yes
Wall Climbing
Dual Stabilizer Yes
Number of Motors
Gallons Filtered Per Hour 4500 gph
Filter Types Bottom Access
Pool Coverage Floor
Pool Types In Ground
Pool Size 68 ft
Pool Shapes Rectangular, Free Shape, Hopper, Kidney, Zero (beach) entry
Pool Surfaces Gunite, Fiberglass, Vinyl, Liner
Cable Length 80 ft
Anti-Tangle Swivel Yes
Obstacle Avoidance Steps, Ladder, Drain Cover, Ledges, Pop-Ups
Warranty 3 Years
Brand Dolphin
Manufacturer Maytronics
Part Number 99996904-US

Read Customer Reviews

Overall Rating: 4.4

Muriel Gatlin - 5 Stars

Works better than any other robotic cleaner I’ve owned.

Mike_Fla - 5 Stars

This bad boy vacuums like crazy. Climbs the walls and stairs like nobody’s business. Highly recommended

GK - 1 Stars

Used this 5 times in a couple of months. It worked but small collection bins don't pick up reasonable size leaves, etc. Then died just after the three month return warranty expired! So I'm out $2K. Horrible poorly written instructions don't explain how the control unit works. Do not buy!!!

Don - 5 Stars

Our pool is 35' wide by 75' long. We do drop it in every other night and it does a great job keeping up.

ALB - 5 Stars

The company has been so helpful and it’s a great product for our neighborhood pool!

Write a Review

Questions and Answers

Does Poolbots charge any restocking fees in your 30 Day Free Trial?

No, we never charge a restocking fee ever! We know a robotic pool cleaner is a big investment, which is why we offer Free 30-Day Trials on all robotic pool cleaners!

How long is the Dolphin W20's warranty?

As a proud Authorized Dealer for Dolphin, the Dolphin W20 includes a full 3 year warranty from date of purchase.

Does Dolphin W20 need a booster pump to work?

No! The Dolphin W20 is plug and play! All you need to do is unbox the unit and plug it into an outlet. No setup or assembly required!

My Dolphin W20 gets stuck on drains, how can I fix this?

With a main drain clip on, you can successfully avoid the robot getting stuck on your drain.

Does the Dolphin W20 work with saltwater pools?

Yes. The Dolphin W20 works with all types of pools, including freshwater and saltwater.

What types of pools does the Dolphin W20 work with?

The Dolphin W20 is compatible with the following types of pools: In-ground pools, above-ground pools, gunite pools, tile pools, fiberglass pools, and viny pools of all shapes and sizes. If you have any questions or wonder if this is the right robot for you, contact us or view our Pool Robot Guide.

Does the Dolphin W20 have WiFi/Bluetooth?

No, the Dolphin W20 does not have WiFi or Bluetooth connectivity. Look at the Dolphin Sigma if you want a robot with WiFi & Bluetooth.

Does the Dolphin W20 have an app?

No, the Dolphin W20 does not utilize an app, as it can be fully controlled via its power supply.

How long does Nautilus CC Plus run for?

The Dolphin W20 cleans for 3 hours. You can set the robot to run daily via its included programmable timer.

How does Dolphin W20 work?

The Dolphin W20 works as an automatic robotic pool cleaner. It will vacuum, scrub, and automate your pool cleaning. With a plug and play design, all you need is an outlet to plug it into and you’re good to go. No booster pump or assembly needed.

Does Dolphin W20 pick up leaves?

The Dolphin W20 can pick up leaves. While not as effective as the Dolphin Premier, which includes an oversized leaf bag.

Does Dolphin W20 pick up sand, algae, or small debris?

The Dolphin W20 cannot perform as well as robots with NanoFiltration. As the mesh filters on Dolphin W20 cannot capture small particles like the newer Gen-2 NanoFilters. See all robots with NanoFiltration here.

Does Dolphin W20 come with NanoFilters?

The Dolphin W20 does not have NanoFilters. See all robots with NanoFilters here.

Does Dolphin W20 clean waterline?

No, the Dolphin W20 does not clean the waterline. The Dolphin W20 only cleans the floors of your pool.

Does Dolphin W20 climb walls?

No, the Dolphin W20 will only clean your pool floors, as it does not have wall climbing or waterline cleaning.

Can the Dolphin W20 be plugged into an extension cord?

Yes it can!

I can power my Dolphin W20 on but it does not move

If your Dolphin powers on but does not move, try checking the tracks for any debris or obstructions. Also, check the drive motor and impeller for any damage or wear. If you are still having issues, contact Maytronics customer support for further assistance.

My Dolphin W20's power supply does not turn on when I press the power button

If your Dolphin's power supply is not turning on, check to make sure it is properly plugged in and that the outlet it is plugged into is working. If the power supply is still not turning on, contact Maytronics customer support for further assistance.

My Dolphin W20 is not cleaning the pool properly

If your Dolphin W20 is not cleaning the pool properly, try checking the filter bag for any debris or blockages. Also, check the brushes and tracks for any damage or wear. If you are still having issues, contact Maytronics customer support for further assistance.

What are the handles and the floats on my Dolphin for?

The handles on your Dolphin are for lifting and carrying the unit, while the floats are designed to help your Dolphin navigate around the pool and maintain proper buoyancy.

There seems to be something stuck in my Dolphin W20's' tracks – how can I get it out?

To remove any debris or obstructions from your Dolphin's tracks, turn off the power supply and carefully remove the tracks from the unit. Use a soft brush or cloth to clean the tracks and remove any debris. Once clean, reattach the tracks to the unit.

The cord is connected to the robot's power unit, but the power unit LED indication is off.

If the power unit LED indication is off even when the charger is connected, please try the following steps: 1) Unplug the power supply from the outlet and wait for 10 seconds. 2) Plug the power supply back in and check if the LED indication turns on. 3) If the LED indication still does not turn on, contact Maytronics customer support for further assistance.

Why should I register my robot?

Registering your Dolphin robotic pool cleaner allows you to receive important product updates and notifications, as well as access to exclusive content and promotions.

What's Next?

Learn more about Nanofilters™, MaxBin™, and so much more to find which pool robot is right for you. Use our Pool Robot Selector to enter your pool type and find an exact match for your swimming pool's needs or read the Best Dolphin Pool Cleaner for 2024.