The micron rating for our FilterFirst pads has not been tested. However, our polishing pads have been tested and are rated at 50 and 100 & 200 microns.
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What is the micron size for pass-through on the FilterFirst pads?
Aquarium Filter Pads
Last updated on 03 Nov, 2025
The micron rating for our FilterFirst pads has not been tested. However, our polishing pads have been tested and are rated at 50 and 100 & 200 microns.