Designed specifically for the Fluval G3 filter, the G3 Tri-EX cartridge is a complete pollution management solution for freshwater aquariums

• Chemical filter media
• Powerful binding power keeps phosphates, nitrates and organic pollutants under control
• Binds over 9000 mg (more than 15 mg/L in a 600 L aquarium) of nitrate and over 1100 mg (more than 2 mg/L in a 600 L aquarium) of phosphate
• For use in freshwater aquariums