EHEIM Liberty Substrat Pro Filter Cartridge (2617421)

Premium Biological Filtration for Crystal-Clear Water

The EHEIM Liberty Substrat Pro Filter Cartridge (2617421) is specially designed for the EHEIM Liberty filter series, providing high-performance biological filtration. Filled with EHEIM Substrat Pro, this cartridge offers an optimal colonization surface for beneficial bacteria, ensuring a stable, healthy, and crystal-clear aquarium environment.

Features & Benefits

• Biological filtration at its best – supports beneficial bacteria growth

• Substrat Pro media – highly porous for maximum surface area (450 m² per litre)

• Stable water quality – reduces harmful substances like nitrite and ammonia

• Ready-to-use cartridge – easy to insert into your EHEIM Liberty filter

• Durable and reusable – can be rinsed gently for multiple uses

• Compatible with freshwater aquariums

Specifications

• Model Number: 2617421

• Filter Media: EHEIM Substrat Pro (sintered glass)

• Function: Biological filtration

• Compatibility: EHEIM Liberty filter series

• Suitable for: Freshwater aquariums

• Reusable: Yes – rinse gently, do not over-clean to preserve bacteria