Fluval Filters for freshwater and marine environments. 2 in each box.

Fluval Filters for freshwater and marine environments. 2 in each box. 4 filters all together. Rinse form thoroughly before inserting into filter. Foam inserts should be rinsed using the water from the aquarium. The inserts should be cleaned every month and replaced every 2 months. New with a little wear on boxes. See pictures

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