Marina Slim Filter Bio-Carb is a genuine replacement cartridge for all three Marina Slim Filter Models (S10, S15, S20). 

Ideal for tropical fish, the filter cartridge contains activated carbon and Ceramitek for optimum filtration and a healthy aquarium. 

The activated carbon effectively removes pollutants and odours, while the Ceramitek, a highly porous ceramic biological filter medium, optimizes biological filtration. 

The easy-to-use disposable cartridge should be replaced every two weeks for best results. Never replace all filter cartridges at the same time to ensure a constant presence of beneficial bacteria.

THIS PRODUCT CANNOT BE SHIPPED OUTSIDE OF THE UNITED STATES. Due to distribution contracts Hagen has with its distributors around the world, we cannot ship their brands (AquaClear, Exo Terra, Fluval, Marina, and Nutrafin) outside of the United States. Our apologies for any inconvenience!