Teton Bio Force Media is a highly efficient biological filtration media designed to provide beneficial bacteria with abundant surface area for colonization and growth. The 3/4-inch plastic media creates numerous spaces where beneficial bacteria can establish themselves, helping support natural biological filtration and maintain healthier, cleaner pond water. Its lightweight plastic construction makes it an excellent choice for use in pond filtration systems, biofilters, and other water-feature filtration applications. Each package contains 1 cubic foot of white Bio Force Media.