Cascade Bio Ceramic Rings are a convenient ready-to-use nylon mesh filter bag filled with ceramic filter rings. Surface area and pores sized to accommodate bacteria necessary for biological balance and to remove toxic ammonia and nitrite.

• Convenient ready-to-use nylon mesh filter bag
• Helps remove toxic Ammonia and Nitrite
• Surface area and pores sized to accommodate bacteria necessary for biological balance

Cascade Bio Ceramic Rings produce crystal clear water and are perfect for use in any canister filter, or in any Penn-Plax Cascade Canister Filter.