(3 Pack) Exo Terra Repti Clear 250 Coarse Foam Filters, 2 Foams each 6 Filters Total (3 Packs with 2 per Pack) Exo Terra Repti Clear 250 Coarse Foam Designed to fit the Exo Terra Repti-Clear F250 Absorbs odors, discoloration, and impurities Improves water clarity Easy to replace