Replacement coarse filter sponge for the Standard filtration system for Rio 240 aquariums - old model with Standard filtration not with Bioflow 3.0 !!! , Rio 300, Vision 260.
Filter sponges with large pores inside the filter provide for the biological settling of water due to the settling of bacterial cultures.
Dimensions:
• Height: 5 cm
• Width: 12.5 cm
• Depth: 12.5 cm
The recommended replacement is after three months.