OASE Filter Foam Set for The FiltoSmart 100 - Aquarium Fi...

The OASE Filter Foam Set for the FiltoSmart 100 includes two replacement filter foams. The combination of fine and coarse mechanical filtration allows you to meet the filtration needs of your aquarium. Timing to replace the filter foam set varies upon aquarium size number of fish and plants and declines in filter performance. Each set includes all filter foams needed for a full filter change.