EHEIM Substrat Pro Biological Filter Media (Sintered Pearl-Shaped Glass) 2L
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<b>[Product Information]</b><br>
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<li>Made of highly porous artifiical sintered glass material</li>
<li>Unbeatable surface area structure of 1800 sq ft per gallon</li>
<li>Can be reused by lightly rinsing with aquarium water every 1 to 3 months and replaced every 3 to 6 months</li>
<li>Provides longer intervals between required maintenance</li>
<li>For use in all EHEIM filters (Classic, Ecco, Pro 3, Pro 3e)</li>
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