Aqueon Quiet Flow Internal Filters: Economical, efficient and easy to use describe this new internal power filter. For use with frameless or framed aquariums. Easy to position with suction cups or clips* filters can attach and hang on the aquarium rim. The filters provide chemical, biological* and mechanical* filtration (3G provides only chemical filtration).
All filters use Aqueon Replacement Filter Cartridges:
QuietFlow E Internal 3 – Extra Small cartridge
QuietFlow E Internal 10 – Small cartridge
QuietFlow E Internal 20 – Medium cartridge
QuietFlow E Internal 40 – Large cartridge
*not included in size 3G