Marineland Biological Filtration Ceramic Filter Rings for C-Series and Magniflow Canister Filters provide ample porous surface area to support healthy growth of beneficial, ammonia-reducing bacteria and effective biological filtration of your tank.
Ceramic Filter Rings make up Part 3 of your Marineland Canister Filters filtration cycle. This bio media is compatible with Rite-Size S, T, and X filter compartments.Directions: