Atlantic's BB1500 contains 150 extremely durable, lightweight Bio-Balls that are easy to clean and reduce channeling. Each ball is 1½ in diameter and has nearly 25 square inches of surface area for bacterial colonization.
BB1500 - Atlantic 1 1/2" Bio-Balls, 150 pcs. (MPN BB1500)
$39.99 $35.99 | 86 Points