(3 of Each) Marina Slim Filter Carbon Plus Ceramic Cartridges and Zeolite Plus Ceramic Cartridges
Carbon Plus Ceramic Cartridges - Absorbs toxic ammonia and reduces fish stress
Carbon Plus Ceramic Cartridges - Effectively removes pollutants and odors
Zeolite Plus Ceramic Cartridges - Absorb toxic ammonia and reduces fish stress - Contains Ceramitek, a highly porous ceramic biological filter medium
Fits the Marina S10, S15 and S20 Slim Filters
(3 of Each) Marina Slim Filter Carbon Plus Ceramic Cartridges and Zeolite Plus Ceramic Cartridges.