Penn Plax Cascade 700/1000 GPH Canister Filter Aquarium Bio Sponge Replacement, 1 Pack
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<b>[Product Information]</b><br>
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<li>Keep your water clean and clear with the replacement bio sponge for use in the Cascade 700 Model CCF2UL and Cascade 1000 Model CCF3UL canister filters.</li>
<li>The bio sponge filter removes ammonia and nitrites from your aquarium tank keeping your aquarium clean, healthy, and odor free.</li>
<li>Filter sponge optimizes the colonization of beneficial aerobic bacteria which prevents the water from becoming cloudy and harming fish.</li>
<li>Perfectly cut to fit into the Cascade 700 / 1000 filter tray without any gaps  which could allow pollutants to re-enter the water.</li>
<li>Genuine Penn Plax replacement cartridge for Cascade 700 / 1000 standard and Elite models. When used together, the filter and bio sponge provide maximum protection against water pollutants.</li>
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