Standard bio-filter medium with large colonisation area for bacteria cultures and high efficiency. SUBSTRAT can be layered in one or more layers. It is a highly porous filter material made from sintered glass. The surface structure offers the important purification bacteria excellent colonisation conditions. The colonisable area amounts to 450 m² per litre.
- Standard bio-filter medium
- Highly porous material made from sintered glass
- Excellent conditions for bacteria cultures
- Suitable for fresh and marine water