These genuine Bio-Carb replacement cartridges are designed for Marina Slim Filter Models S10, S15, and S20. They contain ceramitek and activated carbon for effective biological and chemical filtration. For best results, replace cartridge every two weeks.
Marina Bio-Carb Cartridges for Slim Filters are genuine replacement carbon/ceramitek cartridges designed for use in Marina Slim Filter Models S10, S15, and S20. Each Bio-Carb filter cartridge contains Ceramitek as well as activated carbon. Combined, they deliver effective biological and chemical filtration, removing odors and pollutants while providing a porous medium for beneficial bacteria to thrive. For best results, it is recommended that your Bio-Carb disposable cartridge be replaced every two to three weeks.