EON Backwash Cartridge Filters
Part no. 99987101-ASSY · Filters
Fits 4 models: EON 100, EON 120d, Nautilus EON 100 and more
$69.99
Out of stock online
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$599
Regular price $899
Save $300
In stock
Why it stands outA cordless Dolphin that reaches where others cannot: floor, walls, waterline, steps, corners and tanning ledges as shallow as 8 inches in pools up to 50 ft…
Sold out in our store. We link to Amazon so you can still buy it; as an Amazon Associate we earn from qualifying purchases.

EON
Most cordless robots stop at the walls. The Dolphin Nautilus EON 100 climbs onto steps, benches and tanning ledges in as little as 8 inches of water, works the corners and safety ledges, and still scrubs the floor, walls and waterline of a pool up to 50 ft. SmartMap navigation learns the shape of your pool and plans the cleaning path around it; JetIQ water jets add grip on stairs and uneven surfaces so it does not slip off.
The sealed Monoblock filter traps particles down to 70 microns in a closed chamber, with a full-filter indicator so you know when to empty it. UltraRun scheduling lets the robot live in the pool for about a week of cleaning on one charge, and the Maytronics One app sets schedules and modes whenever it is out of the water. This Nautilus edition is the online-retail version with a one-year warranty; the pool-store Dolphin EON 100 is the same robot with two years. Pool Express is an authorized Maytronics dealer.
Floor, walls, waterline, steps, corners, safety ledges and sun ledges as shallow as 8 inches, in pools up to 50 ft.
Builds a map of the pool and tailors the cleaning path to its shape, so coverage is planned rather than random.
Water jets boost traction on stairs and uneven surfaces, which is what lets a cordless robot stay on a step.
A closed Monoblock filter traps fine particles and keeps them from washing back into the pool; a full-filter indicator tells you when to empty it.
Set a weekly plan and leave the robot in; it runs its cycles on its own for about a week before it needs charging.
Schedules, cleaning modes, alerts and troubleshooting from your phone when the robot is above the waterline.
| Pool Type | Inground and Above-Ground |
|---|---|
| Maximum Pool Length | Up to 50 ft |
| Cleaning Coverage | Floor, Walls, Waterline |
| Included Filtration | Top-Load Basket |
| Power | Cordless (Battery) |
| Timer | Weekly Timer |
| Smartphone App | Yes |
| Navigation | SmartMap |
| Scrubbing Brushes | 2 |
| Cleaning Cycle | 2 hours |
| Weight | 22.1 lb |
| Cleans | Floor, Steps, Sun Ledge, Walls, Waterline, Corners, Safety Ledge |
| Cycle Options | 1.5 hours, 2 hours or 2.5 hours |
| Suction Rate | 4,000 GPH |
| Brush Type | Standard Brush |
|---|---|
| Filter Type | Fine Filter Kit |
| Filter Access | Top Access |
| Full-Filter Indicator | Yes |
| Delayed Start | No |
| Enhanced Cleaning Cycles | Yes |
| App | Maytronics One |
| Pool Shapes | Rectangular, Round, Free Shape, Kidney |
| Robot Dimensions | 17.7 × 16.2 × 11.1 in (L × W × H) |
| Package Dimensions | 22.1 × 17.7 × 12.4 in |
| Warranty | 1-Year Manufacturer's Warranty |
| Brand | Dolphin |
| Manufacturer Part Number | 99994401-PC |
| UPC | 810071228599 |
Shoppers who compare the Dolphin Nautilus EON 100 most often end up with one of these two. Same kind of pool, similar budget, and here is exactly what changes.
| Specification |
Dolphin Nautilus EON 100
This page
|
Dolphin QuantumBest Value
|
Dolphin CaymanBest for Small Pools
|
|---|---|---|---|
| Price | $599 | $1,649 | $1,079 |
| Pool Type | Inground, Above-Ground | Inground | Inground, Above-Ground |
| Maximum Pool Length | Up to 50 ft | Up to 50 ft | Up to 33 ft |
| Cleaning Coverage | Floor, Walls, Waterline | Floor, Walls, Waterline | Floor, Walls |
| Included Filtration | Top-Load Basket | XXL MaxBin Basket, NanoFilters | MaxBin Basket |
| Power | Cordless | 60 ft cable with swivel | 36 ft cable |
| Timer and App | Weekly timer, App | Weekly timer, App, Remote included | Weekly timer |
| Weight | 22.1 lb | 35 lb | 14 lb |
| Warranty | 1 Year | 2 Years | 2 Years |
| Link | View Dolphin Quantum | View Dolphin Cayman |
12 genuine Maytronics parts fit this robot: filters, tracks, power supplies, cables, caddies and covers, other parts.
Part no. 99987101-ASSY · Filters
Fits 4 models: EON 100, EON 120d, Nautilus EON 100 and more
$69.99
Out of stock online
Part no. 99956070-ASSY · Power Supplies
Fits 4 models: EON 100, EON 120d, Nautilus EON 100 and more
$34.99
Out of stock online
Part no. 9987801-ASSY · Tracks
Fits 4 models: EON 100, EON 120d, Nautilus EON 100 and more
$24.99
Out of stock online
Part no. 58984402LF · Cables
Fits 70 models: Premier, Quantum, Sigma and more
$18.99
Out of stock online
Part no. 9991794-R1 · Caddies and Covers
Fits 72 models: Premier, Quantum, Sigma and more
$18.99
Out of stock online
Part no. 99960103-ASSY · Other Parts
Fits 8 models: Liberty 200, Liberty 300, Liberty 400 and more
$21.99
Out of stock online
1-Year Manufacturer's Warranty from Maytronics. Every product carries the manufacturer's warranty shown on its page. Pool Express is an authorized dealer, so your warranty is valid.
Try it in your pool for 30 days. If it is not right for you, return it within 30 days of delivery for a full refund of the purchase price. You pay the return shipping. There is never a restocking fee. Full return policy
Free shipping on every order to the contiguous United States. Orders placed by 2:00 pm Central Time, Monday through Friday, ship the same business day. Orders placed later ship the next business day. Most orders arrive 1–3 business days after they ship. Allow up to 5 business days for rural addresses. Shipping details
| Specification |
Dolphin Nautilus EON 100
This page
|
|||
|---|---|---|---|---|
| Price | $599 | $1,649 | $1,999 | $2,399 |
| Pool Type | Inground, Above-Ground | Inground | Inground | Inground |
| Maximum Pool Length | Up to 50 ft | Up to 50 ft | Up to 50 ft | — |
| Cleaning Coverage Floor, walls, or up to the waterline | Floor, Walls, Waterline | Floor, Walls, Waterline | Floor, Walls, Waterline | Floor, Walls, Waterline |
| Included Filtration Fine filters catch algae-sized debris | Top-Load Basket | XXL MaxBin Basket, NanoFilters | Standard Cartridge, NanoFilters, Oversized Leaf Bag, Multi-Media | Standard Cartridge, NanoFilters |
| Cable | Cordless | 60 ft with Anti-Tangle Swivel | 60 ft with Anti-Tangle Swivel | 60 ft with Anti-Tangle Swivel |
| Timer | Weekly Timer | Weekly Timer | Weekly Timer | Weekly Timer |
| Smartphone App | Yes | Yes | No | Yes |
| Weight | 22.1 lb | 35 lb | 35 lb | 35 lb |
| Warranty | 1 Year | 2 Years | 3 Years | 3 Years |
| Link | View Dolphin Quantum | View Dolphin Premier | View Dolphin Sigma |
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The same robot in two sales channels. The Nautilus EON 100 is the online and retail edition with a one-year warranty; the Dolphin EON 100 is the pool-store edition with a two-year warranty.
No. It ships with the sealed 70-micron Monoblock filter. DebrisLock, the self-backwashing 14-micron filter, comes on the Nautilus EON 120d and is sold as an add-on for the EON 100.
Cordless Maytronics robots, including the EON and the Liberty 400 and 600, lose their Wi-Fi and Bluetooth connection as soon as they are under water. That is normal. Connect the robot to the app before you put it in, set the cleaning mode or weekly schedule you want, then place it in the pool and it runs the program on its own. When you lift it out, the connection comes back automatically. Corded Dolphins stay connected the whole time because the power supply on the deck does the talking. Note that the Liberty 400 pairs by Bluetooth only, through the MyDolphin Plus app.
Its software. Updates carry the fixes and improvements that keep the robot running as designed, so make sure it is current before any other troubleshooting.
If the robot still misbehaves after the update, contact us and we will walk you through the next steps or arrange service.
With the patented DebrisLock backwash filter. Instead of rinsing the basket after every cycle, you empty it about once a week in about five minutes, which Maytronics puts at up to 20 hours saved a year. The filter compresses and traps fine particles, holds a litre of backwash water to flush debris out easily and opens from the bottom with a double door for quick emptying. DebrisLock ships with the EON 120d and is sold as an add-on for the EON 100.
Download the Maytronics One app, turn on Bluetooth and make sure the robot is not on its charger. Create an account and enter the code emailed to you, then hold the robot's power button for three to five seconds to start Bluetooth pairing and follow the on-screen steps. Install the software update if the app offers one. You can then join the robot to your 2.4 GHz Wi-Fi or skip that and do it later. When it is connected the LED blinks three times and turns solid blue.
The robot does not stay connected while it is under water. Set your schedule or cleaning mode first, drop it in, and the connection comes back on its own when you lift it out. One phone can pair over Bluetooth at a time; up to five can connect over Wi-Fi.
Through a filter that catches more fine debris on every pass: filtration from four or five directions, a 4 to 5 litre debris capacity, a larger basket and a closed chamber that keeps what it catches from washing back into the pool. In Maytronics' own 70-minute turbidity tests, starting from the same 7 NTU of cloudiness, the EON 120d left the water up to four times clearer than two other leading robots. Treat that as the manufacturer's figure, but the filter design is why.
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