Aquacity 300SBB 1" Bio-ball with Inside Sponge Filter Media for Aquarium Fish Pond Waterfall Fountain, 300pcs in a bag
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<b>[Product Information]</b><br>
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<li>1" in diameter with inside sponge. Approx 300 balls in a mesh bag.</li>
<li>Great bio filter media for all types of filters</li>
<li>Mesh bag size: 12"x 10.5"</li>
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