Penn Plax Cartridges FC4-Fits Undertow and Perfect-a-Flow - 6 Total Cartrides - (3 Packs with 2 per pack)
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<b>[Product Information]</b><br>
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<li>6 Total Cartrides - (3 Packs with 2 per pack)</li>
<li>Filt-A-Carb Carbon Cartridges are made with top quality activated carbon designed to remove harmful gasses and odors, while clearing up unsightly discoloration.</li>
<li>Undergravel Filter Cartridges are designed to keep your tank looking crystal clear.</li>
<li>Filter Cartridges fit all Undertow and Perfect-a-Flow filters.</li>
<li>FC4-Fits Undertow and Perfect-a-Flow</li>
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