Support answer · Use & Maintenance
What filter options are available with the EON 100 and EON 120d?
Short answer: Dolphin EON 100 includes a 70-micron basket, with an optional 110-micron basket or 14-micron DebrisLock™ filter available.
Based on Maytronics support, updated 2026-07-19, rewritten by Poolbots' pool experts. Applies to 2 models. Parts that fix it are below.
The answer
What to know.
Included filter for Dolphin EON 100

Dolphin EON 100 includes a closed, fine 70-micron filter basket with a lid. It filters from all directions to capture more debris.
Optional 110-micron filter basket

An optional 110-micron basket is available separately. It has no top lid and does not support backwash. A double seal around the top helps keep debris inside. You can also install fine filter panels in this basket.
Optional DebrisLock™ filter

The patented DebrisLock™ filter is compatible with Dolphin EON 100 and is sold separately. It provides ultra-fine, 14-micron filtration and uses backwash technology.
You can replace its panels with fine filter panels, but the lid remains ultra-fine.
Activate backwash when upgrading to DebrisLock™
Use the MaytronicsOne app to enable backwash for the DebrisLock™ filter.
- Open Settings using the three dots in the top-right corner, then select Filter Type.
- Turn on the Activate Backwash switch. Blue indicates that backwash is enabled.
Deactivate backwash when switching to a non-DebrisLock™ filter
Use the MaytronicsOne app to turn backwash off before using a non-DebrisLock™ filter.
- Open Settings using the three dots in the top-right corner, then select Filter Type.
- Turn off the Activate Backwash switch. It should appear gray.
- Select Change to Non-DebrisLock filter, then select Confirm.
For help confirming filter options for Dolphin EON 120d, contact Poolbots' pool experts through live chat or by phone.
Source: Maytronics support. Same steps and facts, rewritten for clarity; the videos and illustrations are Maytronics' own.
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