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The Dolphin Supreme family of robotic pool cleaners delivers top-of-the-line performance with the absolute minimum in effort and hassle. With a Dolphin Supreme working for you, you can relax and enjoy your pool with full confidence that the water is clean for you and your family. The Supreme models have a unique triple-active brushing system which eliminates algae and bacteria, reducing the need for chemicals. They provide reliable filtration in all pool conditions and have an exclusive, dual-level filtration system which ensures a dust and debris free pool. Advanced technologies deliver precise scanning and total cleaning efficiency all the way to the water line, in minimal time and without manual intervention. They allow for convenient maintenance with patented top-opening filtration compartments for easy emptying and cleaning. Gyroscopic navigation system inside maintains stable navigation and ensures maximum cleaning efficiency.


The Dolphin M400 Swimming Pool Cleaner by Maytronics is from the new generation of robotic pool cleaners with advanced systems that ensure accurate scanning for systematic coverage of your pool leaving clean and hygienic water throughout.

Recommended for pools up to 15 metres. (50ft.) in length, the M400 is the cost-effective way to ensure entire pool cleaning, including the floor, walls and waterline.

A cleaning cycle time of 2.5 hours will balance cleaning between the walls, water line and floor.

The Dolphin M400 is a significant step up in robotic pool cleaner technology based on Maytronics many years of experience.  The Dolphin M-Series's unique innovative features take all the hard work out of pool cleaning, while providing reliable cleaning results every time.


Features and Benefits of the Dolphin M400: 

  • Brushes, scrubs, vacuums, and filters the entire pool including the floor, walls, waterline and corners.  The new, advanced technology enables optimal scanning and pool coverage in a shorter cycle time 
  • Integrated Gyro enhances scanning efficiency, precision, maneuverability and maintains stable navigation around the pool to improve cleaning efficiency
  • Intelligent, self-adjusting software insures optimized coverage for any size and shape pool up to 15 metres
  • Dual motor for optimal pool maneuverability and coverage regardless of shape, slope and obstacles
  • The Add-on extra brushing system is twice as efficient. The rigorous brushing and scrubbing action reinforces the elimination of algae and bacteria. (included)
  • Top-opening filtration compartments enabling easy and convenient maintenance of the filtration system.
  • Dual-level filtration system Ultra-fine and Spring net for all types of dirt and debris, even small particles
  • One-way water valves prevent escape of debris and ensure rapid water drainage
  • Adjustable floats allow efficient scanning in different pool sizes
  • Low voltage motor provides minimal energy consumption
  • DIY-easy maintenance, at user and local dealer level
  • Automatic motor protection mechanism
  • Automatic shut off at end of each cycle
  • Cleaning Cycle time of 2.5 hours between floor and walls of pool
  • Dual / Combined brushes supplied are suitable for liner, tile and concrete pools. For a deeper clean on fully tiled pools please select the "Wonderbrush Set" from the Brush set box above.
  • Weight - 11kg
  • Complete with 18 metres of cable with patented design to prevent tangling + Swivel and caddy stand for easy handling and storage
  • Suction rate of 17m³/h
  • Suitable for beach entry pools
  • Comes with a 4 Year Warranty 
  • My Dolphin TM App remote control (control the M400 remotely with the iOS or Android App) 

Dolphin M400 Swimming Pool Cleaner

SKU: DM400001
  • Our return process is very simple and doesn't cost a penny., please contact us if you require a return. Refunds are processed immediately upon receipt of goods.

    Products must be sealed, unused and in a resalable condition in original packaging

    All goods must be inspected on arrival and any damages or discrepancies reported within 7 days.

  • All orders placed before 1pm are arranged next day. (Monday - Friday) Most of our items are in-stock in high quantities

    Pricing is based upon total order and not per item


    Royal Mail 2nd Class (7-10 days) - £3.99

    *Please note, some orders may take longer than expected due to shipment delays. We will keep you informed of any delays with your goods / products.

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