Hagen 15-Pack Marina Slim Aquarium Water Filter with Carbon Plus Ceramic Cartridge
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<b>[Product Information]</b><br>
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<li>Convenient 15 pack; (5) 3 pack</li>
<li>Fits the Marina S10, S15 and S20 Slim Filters</li>
<li>Absorbs toxic ammonia and reduces fish stress</li>
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