Top Fin Retreat Filter Cartridges RF-S (6 Count) 6 Month Supply Aquarium Desktop

NEW IN BOXES. 2 PACK. SEE PHOTOS. The Top Fin Retreat Filter Cartridges RF-S are designed for aquariums and provide a 6-month supply of filter cartridges. These cartridges are specifically for fresh water tanks and are intended for internal filtration. Made by the brand Top Fin, these cartridges are essential for maintaining water quality and creating a healthy environment for fish and other aquatic animals in your aquarium.