Tetra 19550 Whisper Aquarium Filter Cartridge
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<b>[Product Information]</b><br>
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<li>Keeps water crystal clear</li>
<li>Ultra-activated carbon absorbs odors and discoloration</li>
<li>Dense, dual sided mesh catches debris and fish waste</li>
<li>Promotes healthier fish</li>
<li>6-Pack, small Whisper Filter Cartridges</li>
<li>Fits Whisper 1-3i filter system</li>
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