Aquascape UltraKlean Bio Balls Pressure Filter Filtration Media for Ponds, 250 Pieces, Black | 95055
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<b>[Product Information]</b><br>
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<li>Durable material provides effiecint biological and mechanical filtration</li>
<li>For use in UltraKlean Pond Filters and other filtration systems</li>
<li>250 pieces</li>
<li>Each piece measures 7/8-inch in diameter</li>
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