• Box contents: 1 foam
• Filter Foam For The EasyCrystal Filter 250 and EasyCrystal FilterBox 300 for the intensive biological filtration for clean crystalline water.
• Biological filtration: filter sponge with a lot of surface area for the colonisation of friendly bacteria grid frame used to facilitate the replacement of the filter foam biofoam

E’cryst’Filter Biofoam 250/300