Whisper Bio Bag Filter Cartridge [Set of 4] Size: Large / 12 Pack
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<b>[Product Information]</b><br>
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<li>Bio-Bag disposable filter cartridges</li>
<li>Keeps water crystal clear</li>
<li>Removes odors and discoloration</li>
<li>For whisper: 20i, 40i, C, 20, 30 40 and 60 power filteres</li>
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