The Media Maintenance Kit provides a complete filtration solution with three of Fluval's most effective filter media inserts. Designed for use with Fluval AC30 Power Filters, this kit includes mechanical (Bio-Foam), biological (BIOMAX), and chemical (Activated Carbon) filtration. The Bio-Foam traps particles and debris, BIOMAX promotes beneficial growth for optimal biological filtration, and Activated Carbon removes impurities, odors, and discoloration for crystal-clear water. Suitable for both freshwater and saltwater aquariums, this kit ensures your tank remains clean, healthy, and balanced.