The Beatbot iSkim (and iSkim Ultra) does not use a traditional “mesh size” you buy in inches or millimeters like a screen; instead, it uses a filter basket with a fine integrated filter that catches surface debris. Based on available specs and reviews, the effective filtration is around 150 μm (microns) for the AquaSense 2 system that’s often paired with iSkim, and the iSkim Ultra uses a 9 L basket with a fine filter fabric rather than an open “mesh” grid.

Quick Scoop

  • No standard mesh opening listed (e.g., 1/8", 1 mm, etc.) for the iSkim alone.
  • Filter fineness : The AquaSense 2 (often bundled with iSkim) specifies a two-layer filter of 150 μm + 250 μm.
  • Basket capacity : iSkim Ultra has a 9-liter basket, which is roughly 1.8× larger than typical skimmer baskets (~5 L).
  • Debris handled : Leaves, hair, insects, sand, and small particles; the fine filter is designed to trap these without needing a user-specified “mesh size”.

What this means for “mesh size”

If you’re trying to match or replace the filtering element:

  • Think in microns , not screen mesh numbers: around 150 μm fine layer, secondary ~250 μm.
  • The iSkim’s basket is a deep, enclosed filter bin with a fabric-like filter , not a coarse grate you’d describe as “#10 mesh” or “1/4 inch mesh”.
  • For practical purposes, if you need a comparable external filter, look for pool surface skimmer filters rated 100–200 μm rather than trying to guess a mesh count.

Why specs don’t list “mesh size”

Pool robot manufacturers usually describe:

  • Filtration rating in microns (how small of particles are caught), and
  • Basket volume (how much debris before emptying),

rather than traditional screen mesh sizes, because the filter is a specialized fabric/mesh combo molded into the basket, not a replaceable industrial screen.

Information gathered from public forums or data available on the internet and portrayed here.