Replacement filter cartridges for Marina i25 submersible filter, 2-pack

These replacement filter cartridges have been specially designed for the Marina i25 submersible filter. Their outer surface is equipped with polyester foam to collect small particles, and their inner chambers contain activated carbon to eliminate pollutants and odours, as well as zeolite to remove toxic ammonia.

Result: clean, healthy and crystal-clear aquarium water.

Note: For best results, replace cartridges every 4 weeks.

Key features:

• Pack of 2
• Provide mechanical, biological and chemical filtration
• Polyester foam traps small debris; activated carbon eliminates pollutants and odours; zeolite removes toxic ammonia
• Easy to replace
• Designed for the Marina i25 submersible filter (A131)